Azzindani/Open_Reaction_Data huggingface dataset:
Reaction SMILES: [O:1]=[C:2]1[C:10]2([CH2:15][CH2:14][CH2:13][CH2:12][CH2:11]2)[C:9]2[C:4](=[CH:5][CH:6]=[C:7]([C:16]3[CH:17]=[C:18]([CH:21]=[C:22]([F:24])[CH:23]=3)[C:19]#[N:20])[CH:8]=2)[NH:3]1.[CH2:25]([O:27][CH:28](OCC)[O:29][CH2:30][CH3:31])[CH3:26]>>[CH2:25]([O:27][CH:28]([O:29][CH2:30][CH3:31])[N:3]1[C:4]2[C:9](=[CH:8][C:7]([C:16]3[CH:17]=[C:18]([CH:21]=[C:22]([F:24])[CH:23]=3)[C:19]#[N:20])=[CH:6][CH:5]=2)[C:10]2([CH2:11][CH2:12][CH2:13][CH2:14][CH2:15]2)[C:2]1=[O:1])[CH3:26]
Reactant: N#Cc1cc(F)cc(-c2ccc3c(c2)C2(CCCCC2)C(=O)N3)c1
Reactant: CCOC(OCC)OCC
Product: CCOC(OCC)N1C(=O)C2(CCCCC2)c2cc(-c3cc(F)cc(C#N)c3)ccc21
Yield: 56.4 %

Procedure:
A solution of 3-(1′,2′-dihydro-2′-oxospiro[cyclohexane-1,3′-[3H]indol]-5′-yl)-5-fluorobenzonitrile (1.0 eq, 0.27 g, 0.84 mmol) in triethylorthoformate (2 mL, 12 mmol) was heated to 150° C. for 1 h. The reaction mixture was allowed to cool, the excess triethylorthoformate was removed in vacuo, and the residue was purified by flash column chromatography on silica gel (eluting with 10% EtOAc/hexane) to give the title compound (0.2 g, 56%) as a white powder, mp 146° C. 1H NMR (DMSO-d6; 400 MHz) δ 1.13 (t, 6H, J=7 Hz), 1.60-1.96 (m, 10H), 3.48 (m, 2H), 3.66 (m, 2H), 6.17 (s, 1H), 7.35 (d, 1H, J=8.3 Hz), 7.68 (dd, 1H, J=2.0, 8.3 Hz), 7.77 (ddd, 1H, J=1.3, 2.4 Hz), 7.89 (d, 1H, J=2.0 Hz), 7.92 (dt, 1H, J=2.4, 10.5 Hz)8.08 (dd, 1H, J=1.3, 2.9 Hz). MS ((+)-EI) m/z 422 [M+]. Anal. Calcd for C25H27FN2O3: C, 71.07; H, 6.44; N, 6.63. Found: C, 70.75; H, 6.48; N, 6.52.
Reaction SMILES: [Br:1][C:2]1[CH:3]=[N:4][CH:5]=[CH:6][C:7]=1[N:8]1[CH2:13][CH2:12][CH:11]([C:14]([NH2:16])=[O:15])[CH2:10][CH2:9]1.[Cl:17]N1C(=O)CCC1=O.ClC1C=NC=C(Cl)C=1N1CCC(C(N)=O)CC1>CN(C=O)C>[Br:1][C:2]1[CH:3]=[N:4][CH:5]=[C:6]([Cl:17])[C:7]=1[N:8]1[CH2:13][CH2:12][CH:11]([C:14]([NH2:16])=[O:15])[CH2:10][CH2:9]1
Reactant: NC(=O)C1CCN(c2ccncc2Br)CC1
Reactant: O=C1CCC(=O)N1Cl
Agent: NC(=O)C1CCN(c2c(Cl)cncc2Cl)CC1
Solvent: CN(C)C=O
Product: NC(=O)C1CCN(c2c(Cl)cncc2Br)CC1
Temperature: 80 °C
Reaction time: 8 h

Procedure:
To a solution of 1-(3-bromopyridin-4-yl)piperidine-4-carboxamide E36 (100 mg, 0.35 mmol) in DMF (7.00 mL) was added N-chlorosuccinimide (94 mg, 0.70 mmol). The reaction was heated to 80° C. and stirred for 8 hours before partitioning between EtOAc and water (100 ml each), the separated organic layer was washed with water (2×75 ml), brine (20 mL), dried (MgSO4) and concentrated under reduced pressure to give a crude clear pale yellow oil (82 mg). The crude product was purified by flash column chromatography on silica gel (CH2Cl2, EtOH, 98:2-84:16, biotage 25+S) followed by flash column chromatography on silica gel (CH2Cl2, EtOH, 96:4-82:18, biotage 14+M) to give a mixture of title compound and 1-(3,5-dichloropyridin-4-yl)piperidine-4-carboxamide by-product as a white solid (20 mg). The mixture was further purified by preparative hplc (MeOH, H2O, 9:20, 25 min) to furnish the title compound as a white solid, LC-MS (ESI, 4 min) Rt 2.46 min, m/z 320 (100%, [M+H]+); m/z (ESI) C11H13N3OClBr requires 316.9931, found [M+H]+ 318.0003.
Reaction SMILES: [NH2:1][C:2]1[C:7]2=[C:8]([C:16]3[CH:21]=[CH:20][CH:19]=[C:18]([O:22][CH2:23][C:24]4[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=4)[CH:17]=3)[CH:9]=[C:10]([CH2:11][CH2:12][CH2:13][CH2:14]O)[N:6]2[N:5]=[CH:4][N:3]=1.C(N(CC)CC)C.CS(Cl)(=O)=O.C(=O)([O-])[O-].[K+].[K+].[NH:48]1[CH2:53][CH2:52][CH2:51][CH2:50][CH2:49]1>ClCCl>[CH2:23]([O:22][C:18]1[CH:17]=[C:16]([C:8]2[CH:9]=[C:10]([CH2:11][CH2:12][CH2:13][CH2:14][N:48]3[CH2:53][CH2:52][CH2:51][CH2:50][CH2:49]3)[N:6]3[C:7]=2[C:2]([NH2:1])=[N:3][CH:4]=[N:5]3)[CH:21]=[CH:20][CH:19]=1)[C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1
Reactant: Nc1ncnn2c(CCCCO)cc(-c3cccc(OCc4ccccc4)c3)c12
Reactant: C1CCNCC1
Agent: CS(=O)(=O)Cl
Agent: O=C([O-])[O-]
Agent: [K+]
Solvent: ClCCl
Solvent: CCN(CC)CC
Product: Nc1ncnn2c(CCCCN3CCCCC3)cc(-c3cccc(OCc4ccccc4)c3)c12
Temperature: 0 °C
Reaction time: 4 h
Yield: 4.2 %

Procedure:
To a cooled (0° C.) solution of 4-{4-amino-5-[3-(benzyloxy)phenyl]pyrrolo[2,1-f][1,2,4]triazin-7-yl}butan-1-ol (80 mg, 0.21 mmol) in dichloromethane (1 mL) was added triethylamine (32 μL, 0.23 mmol) and methanesulfonyl chloride (17 μL, 0.22 mmol). The reaction was stirred (0° C.) for 4 h and then warmed to rt. The mixture was quenched with the addition of ice water (1 mL). The layers were separated and the organic layer was dried (Na2SO4) and evaporated. The residue was dissolved in DMF (1 mL) and potassium carbonate (85 mg, 0.62 mmol) and piperidine (18 μL, 0.22 mol) were added to the mixture. The reaction was stirred (60° C.) for 17 h and then cooled to rt. The mixture was partitioned between ethyl acetate (15 mL) and water (15 mL). The layers were separated and the aqueous was further extracted with ethyl acetate (2×10 mL). The combined organics were dried (Na2SO4) and evaporated. The residue was purified by preparative HPLC using a gradient elution from 15% to 45% acetonitrile in water to obtain 4 mg (5%) of the desired product. 1H NMR (300 MHz, CD3CN) δ 7.86 (s, 1 H), 7.51-7.46 (m, 2 H), 7.45-7.32 (m, 4 H), 7.12-7.09 (m, 1 H), 7.09-7.06 (m, 1 H), 7.04-7.00 (s, 1 H), 6.56 (s, 1 H), 5.17 (s, 2 H), 2.96 (t, 2 H), 2.47-2.27 (m, 6 H), 1.83-1.73 (m, 2 H), 1.63-1.1.51 (m, 6 H), 1.48-1.40 (m, 2 H); ES-MS m/z 456.3 [M+H]+, HPLC RT (min) 2.29.
Reaction SMILES: C1(P(N=[N+]=[N-])(C2C=CC=CC=2)=O)C=CC=CC=1.[CH3:18][O:19][C:20]1[CH:21]=[C:22]([CH:31]=[C:32]([O:36][CH3:37])[C:33]=1[O:34][CH3:35])[C:23]([N:25]1[CH2:30][CH2:29][NH:28][CH2:27][CH2:26]1)=[O:24].[C:38]1(/[C:44](/[C:49]2[CH:54]=[CH:53][N:52]=[CH:51][CH:50]=2)=[CH:45]\[C:46](O)=[O:47])[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=1.C(N(CC)CC)C>C(Cl)Cl>[C:38]1(/[C:44](/[C:49]2[CH:54]=[CH:53][N:52]=[CH:51][CH:50]=2)=[CH:45]\[C:46]([N:28]2[CH2:29][CH2:30][N:25]([C:23](=[O:24])[C:22]3[CH:21]=[C:20]([O:19][CH3:18])[C:33]([O:34][CH3:35])=[C:32]([O:36][CH3:37])[CH:31]=3)[CH2:26][CH2:27]2)=[O:47])[CH:39]=[CH:40][CH:41]=[CH:42][CH:43]=1
Reactant: COc1cc(C(=O)N2CCNCC2)cc(OC)c1OC
Reactant: O=C(O)/C=C(\c1ccccc1)c1ccncc1
Agent: [N-]=[N+]=NP(=O)(c1ccccc1)c1ccccc1
Solvent: CCN(CC)CC
Solvent: ClCCl
Product: COc1cc(C(=O)N2CCN(C(=O)/C=C(\c3ccccc3)c3ccncc3)CC2)cc(OC)c1OC
Temperature: 25 °C
Reaction time: 4 h
Yield: 86.4 %

Procedure:
1 ml of a methylene chloride solution containing 0.330 g of diphenylphosphoryl azide and then 0.280 g of 1-(3,4,5-trimethoxybenzoyl)piperazine were added to 5 ml of a methylene chloride solution containing both 0.224 g of (E)-3-phenyl-3-(4-pyridyl)acrylic acid (prepared as described in Preparation 3) and 0.28 ml of triethylamine. The mixture was then stirred for 4 hours at room temperature, after which the reaction solution was diluted with 20 ml of methylene chloride. It was then washed with a 5% w/v aqueous solution of sodium bicarbonate, followed by a saturated aqueous solution of sodium chloride, and the organic phase was dried over anhydrous sodium sulfate. The solvent was then removed by distillation under reduced pressure, and the oily residue (0.686 g) was purified by silica gel flash chromatography. 0.419 g of the title compound was obtained as a white powder from the fractions eluted with mixtures of methylene chloride and methanol ranging from 100:2 to 100:3 by volume.
Reaction SMILES: [C:1]1([CH2:7][CH2:8][N:9]2[CH2:14][CH2:13][CH:12]([C:15]([C:17]3[CH:22]=[CH:21][C:20]([NH:23]C(=O)C)=[CH:19][CH:18]=3)=[O:16])[CH2:11][CH2:10]2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[BH4-].[K+].O>CO>[NH2:23][C:20]1[CH:21]=[CH:22][C:17]([CH:15]([CH:12]2[CH2:13][CH2:14][N:9]([CH2:8][CH2:7][C:1]3[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=3)[CH2:10][CH2:11]2)[OH:16])=[CH:18][CH:19]=1
Reactant: CC(=O)Nc1ccc(C(=O)C2CCN(CCc3ccccc3)CC2)cc1
Agent: [BH4-]
Agent: [K+]
Solvent: CO
Solvent: O
Product: Nc1ccc(C(O)C2CCN(CCc3ccccc3)CC2)cc1
Reaction time: 6 h
Yield: 21.2 %

Procedure:
To N-[4-[[1-(2-phenylethyl)-4-piperidinyl]carbonyl]phenyl]acetamide (40.0 g, 114 mmol) in methanol (900 ml) was added potassium borohydride (16 g, 300 mmol), in small portions, over a 6 hour period. Water (200 ml) was added and the solution was stirred for 20 hours. The solution was concentrated and partitioned between water and dichloromethane. The layers were separated, the organic layer dried (MgSO4), filtered, and concentrated. The resulting material was chromatographed on silica gel, eluting with 10% methanol in chloroform. The appropriate fractions were combined, evaporated, and the resulting solid recrystallized from 2-propranol/water to afford α-(4-aminophenyl)-1-(2-phenylethyl)-4-piperidine methanol as a white solid (7.5 g, 21%): m.p. 129°-130° C.
Reaction SMILES: Cl[C:2]1[N:3]=[C:4]([NH:11][C:12]2[CH:17]=[CH:16][CH:15]=[C:14]([N:18]3[CH2:22][CH2:21][CH2:20][C@@H:19]3[CH3:23])[CH:13]=2)[C:5]2[N:10]=[CH:9][S:8][C:6]=2[N:7]=1.CC1(C)C(C)(C)OB([C:32]2[CH:33]=[C:34]([CH:50]=[CH:51][CH:52]=2)[CH2:35][NH:36][CH:37]2[CH2:42][CH2:41][N:40]([C:43]([O:45][C:46]([CH3:49])([CH3:48])[CH3:47])=[O:44])[CH2:39][CH2:38]2)O1.C([O-])([O-])=O.[Na+].[Na+]>O1CCOCC1.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH3:23][C@H:19]1[CH2:20][CH2:21][CH2:22][N:18]1[C:14]1[CH:13]=[C:12]([NH:11][C:4]2[C:5]3[N:10]=[CH:9][S:8][C:6]=3[N:7]=[C:2]([C:32]3[CH:33]=[C:34]([CH:50]=[CH:51][CH:52]=3)[CH2:35][NH:36][CH:37]3[CH2:42][CH2:41][N:40]([C:43]([O:45][C:46]([CH3:48])([CH3:49])[CH3:47])=[O:44])[CH2:39][CH2:38]3)[N:3]=2)[CH:17]=[CH:16][CH:15]=1
Reactant: CC(C)(C)OC(=O)N1CCC(NCc2cccc(B3OC(C)(C)C(C)(C)O3)c2)CC1
Reactant: C[C@H]1CCCN1c1cccc(Nc2nc(Cl)nc3scnc23)c1
Agent: c1ccc([P](c2ccccc2)(c2ccccc2)[Pd]([P](c2ccccc2)(c2ccccc2)c2ccccc2)([P](c2ccccc2)(c2ccccc2)c2ccccc2)[P](c2ccccc2)(c2ccccc2)c2ccccc2)cc1
Agent: O=C([O-])[O-]
Agent: [Na+]
Solvent: O
Solvent: C1COCCO1
Product: C[C@H]1CCCN1c1cccc(Nc2nc(-c3cccc(CNC4CCN(C(=O)OC(C)(C)C)CC4)c3)nc3scnc23)c1

Procedure:
To a solution of (S)-5-chloro-N-(3-(2-methylpyrrolidin-1-yl)phenyl)thiazolo[5,4-d]pyrimidin-7-amine (200 mg, 0.58 mmol) and crude tert-butyl 4-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzylamino)piperidine-1-carboxylate in 10 mL of 1,4-dioxane and 2 mL of water was added Na2CO3 (184 mg, 1.74 mmol) followed by Pd(PPh3)4 (184 mg, 0.03 mmol) under nitrogen with stirring. The mixture was refluxed for 15 hours under nitrogen. After cooled, the solvent was evaporated by rotary evaporation under reduced pressure. The residue was poured into water and extracted with EtOAc (3×15 mL). The organic layer was washed with brine and dried over Na2SO4. After filtration and concentration, the residue was purified by column chromatography (silica gel, eluting with EtOAc) to give (S)-tert-butyl 4-(3-(7-(3-(2-methylpyrrolidin-1-yl)phenylamino)thiazolo[5,4-d]pyrimidin-5-yl)benzylamino)piperidine-1-carboxylate (110 mg, 32% for the two steps). LC-MS: 250.6 [M/2+H]+, 600 [M+H]+, tR=1.57 min.
Reaction SMILES: [N+]([O-])([O-])=O.[Ag+:5].C(N(CC)CC)C.[NH2:13][C:14]1[C:27]2[C:26](=[O:28])[C:25]3[C:20](=[CH:21][CH:22]=[CH:23][CH:24]=3)[C:19](=[O:29])[C:18]=2[C:17]([NH2:30])=[CH:16][CH:15]=1>C(#N)C>[Ag:5].[NH2:13][C:14]1[C:27]2[C:26](=[O:28])[C:25]3[C:20](=[CH:21][CH:22]=[CH:23][CH:24]=3)[C:19](=[O:29])[C:18]=2[C:17]([NH2:30])=[CH:16][CH:15]=1
Reactant: [Ag+]
Agent: Nc1ccc(N)c2c1C(=O)c1ccccc1C2=O
Agent: O=[N+]([O-])[O-]
Solvent: CC#N
Solvent: CCN(CC)CC
Product: [Ag]

Procedure:
Silver (I) nitrate (0.71g) is dissolved in acetonitrile (25 ml). Triethylamine (0.3 ml) and 1,4-diamino anthraquinone (0.5 g) are added and a precipitate forms immediately. The precipitate is collected and washed with acetonitrile, dimethylformamide, acetonitrile, and finally methylene chloride before drying. The yield is 0.22 g of a dark blue-black powder having a conductivity of 7.9×10-3S/cm. Analysis shows a composition of C--38.6 percent, H--2.06 percent, N--6.12 percent and Ag--40.1 percent.
Reaction SMILES: [Br:1][C:2]1[CH:14]=[CH:13][C:12]2[C:11]3[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=3)[C:5]([CH3:16])([CH3:15])[C:4]=2[CH:3]=1.[C:17]1(=[O:27])[O:22][C:20](=[O:21])[C:19]2=[CH:23][CH:24]=[CH:25][CH:26]=[C:18]12.ClCCl.[Cl-].[Al+3].[Cl-].[Cl-]>O>[Br:1][C:2]1[CH:3]=[C:4]2[C:12]([C:11]3[CH:10]=[CH:9][C:8]([C:17]([C:18]4[CH:26]=[CH:25][CH:24]=[CH:23][C:19]=4[C:20]([OH:22])=[O:21])=[O:27])=[CH:7][C:6]=3[C:5]2([CH3:16])[CH3:15])=[CH:13][CH:14]=1
Reactant: CC1(C)c2ccccc2-c2ccc(Br)cc21
Reactant: O=C1OC(=O)c2ccccc21
Agent: [Al+3]
Agent: [Cl-]
Solvent: ClCCl
Solvent: O
Product: CC1(C)c2cc(Br)ccc2-c2ccc(C(=O)c3ccccc3C(=O)O)cc21
Temperature: 25 °C
Yield: 59.9 %

Procedure:
2-bromo-9,9-dimethyl-9H-fluorene (25.0 g, 0.092 mol) and phthalic anhydride (17.68 g, 0.119 mol) were placed in a reaction vessel, and added with dichloromethane (700 ml). At 0° C., aluminum chloride (18.5 g, 0.138 mol) was gradually added thereto, and the temperature was raised up to room temperature. Then, the resultant mixture was stirred for 12 hours. After the reaction was completed, the resultant product was gradually added with distilled water. The resultant product was extracted with an excess of dichloromethane, and washed several times with distilled water. After solvent removal, the produced solid was placed in a Hexane 2 l-containing vessel, washed, filtered, and dried, 2-(7-bromo-9,9-dimethyl-9H-fluorene-2-carbonyl)benzoic acid (23.2 g, yield 60%) was obtained.
Reaction SMILES: [H-].[Na+].[CH3:3][C:4](=[CH2:7])[CH2:5][OH:6].Cl[CH2:9][C:10]1[CH:11]=[C:12]([CH:16]=[CH:17][CH:18]=1)[C:13]([OH:15])=[O:14].O>O1CCCC1>[CH3:7][C:4](=[CH2:3])[CH2:5][O:6][CH2:9][C:10]1[CH:11]=[C:12]([CH:16]=[CH:17][CH:18]=1)[C:13]([OH:15])=[O:14]
Reactant: C=C(C)CO
Reactant: O=C(O)c1cccc(CCl)c1
Agent: [H-]
Agent: [Na+]
Solvent: C1CCOC1
Solvent: O
Product: C=C(C)COCc1cccc(C(=O)O)c1
Yield: 85.9 %

Procedure:
To the suspension of Sodium Hydride (1.516 g, 95%, 60 mmol) in tetrahydrofuran (150 ml), 2-Methyl-prop-2-en-1-ol (4.323 g, 4.1 ml, 60 mmol) was added. After the reaction mixture was refluxed for 30 min, 3-Chloromethyl-benzoic acid (4.10 g, 24 mmol) was added and the reaction was kept to reflux for additional 10 h. After cooling down, water (100 ml) was added and the tetrahydrofuran was removed under vacuum. This resulting aqueous solution was adjusted with 6N HCl to pH 2 at 5° C., and the mixture was extracted with Et2O (50 ml×3). The organic phase was combined and washed with water (10 ml×2) respectively. The ether extract was dried with anhydrous sodium sulfate and then concentrated to give 3-(2-Methyl-allyloxymethyl)-benzoic acid as colorless oil (4.25 g, 85.9%). 1H-NMR (400 MHz, d6-DMSO): 7.90 (m, 1 arom.H); 7.85 (m, 1 arom.H); 7.55 (m, 1 arom.H); 7.45 (m, 1 arom.H); 4.96, 4.88 (2 s-like; C═CH2); 4.50 (s, —OCH2—C6H4); 3.90 (s, CH2O); 1.69 (s, CH3). 13C-NMR (100 MHz, d6-DMSO): 167.22 (—C═O); 142.03; 139.00; 131.72; 130.78; 128.56; 128.31; 128.07; 111.71; 73.41; 70.58; 19.30.
Reaction SMILES: [N:1]1[CH:6]=[CH:5][N:4]=[CH:3][C:2]=1[C:7]1[NH:11][N:10]=[C:9]([C:12]2[S:13][CH:14]=[CH:15][CH:16]=2)[C:8]=1[CH2:17][CH2:18][NH2:19].C(N(C(C)C)CC)(C)C.[CH2:29]([C:34]1[CH:39]=[CH:38][C:37]([S:40](Cl)(=[O:42])=[O:41])=[CH:36][CH:35]=1)[CH2:30][CH2:31][CH2:32][CH3:33]>ClCCl>[CH2:29]([C:34]1[CH:35]=[CH:36][C:37]([S:40]([NH:19][CH2:18][CH2:17][C:8]2[C:9]([C:12]3[S:13][CH:14]=[CH:15][CH:16]=3)=[N:10][NH:11][C:7]=2[C:2]2[CH:3]=[N:4][CH:5]=[CH:6][N:1]=2)(=[O:42])=[O:41])=[CH:38][CH:39]=1)[CH2:30][CH2:31][CH2:32][CH3:33]
Reactant: CCCCCc1ccc(S(=O)(=O)Cl)cc1
Reactant: NCCc1c(-c2cccs2)n[nH]c1-c1cnccn1
Solvent: ClCCl
Solvent: CCN(C(C)C)C(C)C
Product: CCCCCc1ccc(S(=O)(=O)NCCc2c(-c3cccs3)n[nH]c2-c2cnccn2)cc1
Reaction time: 3 h
Yield: 30580.7 %

Procedure:
A mixture of the 2-(5-Pyrazin-2-yl-3-thiophen-2-yl-1H-pyrazol-4-yl)-ethylamine 1D (7 mg, 25.8 μmol), diisopropylethylamine (9.0 μl, 51.6 μmol) and 4-n-pentylbenzenesulfonyl chloride (7.0 mg, 28.3 μmol) in dichloromethane (1 mL) was stirred for 3 h. The reaction mixture was concentrated under reduced pressure. The crude product dissolved in methanol (2 ml) and was purified by prep-HPLC. Removal of the solvent in vacuo provided the title compound (3.8 g mg, 41% yield). MS m/e 481; HPLC retention time 3.54 min (Method A).
Reaction SMILES: [Br:1][C:2]1[N:7]2[CH:8]=[CH:9][N:10]=[C:6]2[C:5]([NH:11][C:12]2[CH:20]=[CH:19][C:15]([C:16]([OH:18])=O)=[CH:14][CH:13]=2)=[N:4][CH:3]=1.[NH2:21][CH2:22][C:23]1[CH:28]=[CH:27][C:26]([OH:29])=[CH:25][CH:24]=1.C(N(CC)C(C)C)(C)C.F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2N=CC=CC=2N=N1>CN(C=O)C>[Br:1][C:2]1[N:7]2[CH:8]=[CH:9][N:10]=[C:6]2[C:5]([NH:11][C:12]2[CH:13]=[CH:14][C:15]([C:16]([NH:21][CH2:22][C:23]3[CH:28]=[CH:27][C:26]([OH:29])=[CH:25][CH:24]=3)=[O:18])=[CH:19][CH:20]=2)=[N:4][CH:3]=1
Reactant: O=C(O)c1ccc(Nc2ncc(Br)n3ccnc23)cc1
Reactant: NCc1ccc(O)cc1
Agent: CN(C)C(On1nnc2cccnc21)=[N+](C)C
Agent: F[P-](F)(F)(F)(F)F
Solvent: CN(C)C=O
Solvent: CCN(C(C)C)C(C)C
Product: O=C(NCc1ccc(O)cc1)c1ccc(Nc2ncc(Br)n3ccnc23)cc1
Temperature: 0 °C
Reaction time: 18 h

Procedure:
A mixture of 4-(5-bromoimidazo[1,2-a]pyrazin-8-ylamino) benzoic acid (116 mg, 0.35 mmol), 4-aminomethylphenol (43 mg, 0.35 mmol), and N,N-diisopropylethylamine (0.094 mL, 0.525 mmol) in DMF (1 mL) is cooled to 0° C., and O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (160 mg, 0.42 mmol) is added. The cooling bath is removed, and the reaction mixture stirred at 25° C. for 18 hours. After this time the solvent is removed in vacuo, and the residue triturated with MeOH. The resultant solid is collected by filtration and identified as the desired phenol.
Reaction SMILES: C([N:11]1[CH2:18][CH2:17][CH2:16][CH:12]1[C:13]([OH:15])=[O:14])(OCC1C=CC=CC=1)=O.[CH2:19](O)[CH2:20][CH2:21][CH2:22][CH2:23][CH3:24].CN(C)C=O.C1(N=C=NC2CCCCC2)CCCCC1>N1C=CC=CC=1>[CH2:19]([O:15][C:13]([CH:12]1[CH2:16][CH2:17][CH2:18][NH:11]1)=[O:14])[CH2:20][CH2:21][CH2:22][CH2:23][CH3:24]
Reactant: O=C(O)C1CCCN1C(=O)OCc1ccccc1
Reactant: CCCCCCO
Agent: C(=NC1CCCCC1)=NC1CCCCC1
Solvent: CN(C)C=O
Solvent: c1ccncc1
Product: CCCCCCOC(=O)C1CCCN1
Temperature: 25 °C
Reaction time: 16 h

Procedure:
To a stirred solution of 24.9 g. (0.01 mol.) of N-carbobenzoxy-DL-proline and 11.22 g. (0.11 mol.) of n-hexanol in 200 ml. of dry dimethylformamide and 7.9 g. pyridine at room temperature is added 20.6 g. (0.01 mol.) of N,N'-dicyclohexylcarbodiimide. After stirring this mixture at room temperature for 16 hours, the precipitated N,N'-dicyclohexylurea is filtered off, the filtrate is diluted with a large volume of saturated aqueous sodium chloride, and this is thoroughly extracted with chloroform. The combined extracts are dried and concentrated in vacuo to give an oil comprising 1-(benzyloxy)carbonyl)]-2-[(hexyloxy)carbonyl]pyrrolidine.
Reaction SMILES: Cl.CN(C)CCCN=C=NCC.ON1C2N=CC=CC=2N=N1.Cl.[NH2:24][CH:25]([C:31]1[CH:36]=[CH:35][CH:34]=[C:33]([F:37])[CH:32]=1)[CH2:26][C:27]([O:29][CH3:30])=[O:28].C(N(CC)C(C)C)(C)C.[O:47]=[C:48]1[N:52]([C:53]2[CH:58]=[CH:57][CH:56]=[C:55]([NH:59][C:60]([NH:62][CH2:63][C:64]3[CH:69]=[CH:68][CH:67]=[CH:66][CH:65]=3)=[O:61])[CH:54]=2)[CH2:51][CH:50]([C:70](O)=[O:71])[CH2:49]1>CN(C)C=O>[F:37][C:33]1[CH:32]=[C:31]([CH:25]([NH:24][C:70]([CH:50]2[CH2:49][C:48](=[O:47])[N:52]([C:53]3[CH:58]=[CH:57][CH:56]=[C:55]([NH:59][C:60]([NH:62][CH2:63][C:64]4[CH:69]=[CH:68][CH:67]=[CH:66][CH:65]=4)=[O:61])[CH:54]=3)[CH2:51]2)=[O:71])[CH2:26][C:27]([O:29][CH3:30])=[O:28])[CH:36]=[CH:35][CH:34]=1
Reactant: O=C(NCc1ccccc1)Nc1cccc(N2CC(C(=O)O)CC2=O)c1
Reactant: COC(=O)CC(N)c1cccc(F)c1
Agent: CCN=C=NCCCN(C)C
Agent: Cl
Agent: On1nnc2cccnc21
Solvent: CCN(C(C)C)C(C)C
Solvent: CN(C)C=O
Product: COC(=O)CC(NC(=O)C1CC(=O)N(c2cccc(NC(=O)NCc3ccccc3)c2)C1)c1cccc(F)c1
Temperature: 23 °C
Reaction time: 92 h

Procedure:
1-(3-(Dimethylamino)propyl)-3-ethylcarbodiimide hydrochloride (99.5 mg, 0.52 mmol, 1.2 equiv), 1-hydroxy-7-azabenzotriazole (12.2 mg, 0.090 mmol, 0.2 equiv), methyl 3-amino-3-(3-fluorophenyl)propanoate hydrochloride (118.8 mg, 0.51 mmol, 1.2 equiv), and N,N-diisopropylethylamine (0.18 mL, 1.03 mmol, 2.4 equiv) were added sequentially to a solution of 5-oxo-1-(3-{(benzylamino)carbonylamino}phenyl)pyrrolidine-3-carboxylic acid (152.2 mg, 0.43 mmol, 1 equiv) in N,N-dimethylformamide (3.0 mL). The resulting solution was stirred at 23° C. for 92 hr. The reaction was partitioned between an aqueous solution of hydrochloric acid (1.5 N, 20 mL) and ethyl acetate (3×25 mL). The combined organic layers were dried over sodium sulfate, were filtered, and were concentrated in vacuo. The residue was purified by flash column chromatography (90% ethyl acetate in hexanes) to give two diastereomers of the title compound (first diastereomer and second diastereomer) as white solids.
Reaction SMILES: [NH2:1][C:2]1[CH:11]=[C:10]([O:12][CH2:13][CH3:14])[C:9]([O:15][CH3:16])=[CH:8][C:3]=1[C:4]([O:6][CH3:7])=[O:5].CO[CH:19](OC)[N:20]([CH3:22])[CH3:21]>CN(C=O)C.CC(N(C)C)=O>[CH2:13]([O:12][C:10]1[C:9]([O:15][CH3:16])=[CH:8][C:3]([C:4]([O:6][CH3:7])=[O:5])=[C:2]([N:1]=[CH:19][N:20]([CH3:22])[CH3:21])[CH:11]=1)[CH3:14]
Reactant: CCOc1cc(N)c(C(=O)OC)cc1OC
Reactant: COC(OC)N(C)C
Solvent: CN(C)C=O
Solvent: CC(=O)N(C)C
Product: CCOc1cc(N=CN(C)C)c(C(=O)OC)cc1OC
Temperature: 100 °C
Yield: 97.1 %

Procedure:
A mixture of 15.056 g (66.9 mmol) methyl 2-amino-4-ethoxy-5-methoxybenzoate and 14.1 ml (100 mmol) N,N-dimethylformamide dimethylacetal was heated to 100° C. under N2. At 4.5 hours added 4.7 ml (33.3 mmol) more DMF/DMA and removed heat at 5 hours. Stripped solvent, azeotroped with toluene, and dried in vacuo, giving 18.211 g of grey-brown solid: mass spectrum (electrospray m/e): M+H=281.3.
Reaction SMILES: [CH2:1]([N:3]([CH2:6][C:7]1[S:11][C:10]([C:12]2[O:16][N:15]=[C:14]([C:17]3[CH:25]=[CH:24][C:20]([C:21](O)=[O:22])=[CH:19][CH:18]=3)[N:13]=2)=[CH:9][C:8]=1[CH3:26])[CH2:4][CH3:5])[CH3:2].C1C=CC2N(O)N=NC=2C=1.CCN=C=NCCCN(C)C.Cl.[CH2:49]([CH2:51][NH2:52])[OH:50]>CN(C=O)C.CC(=O)OCC>[CH2:1]([N:3]([CH2:6][C:7]1[S:11][C:10]([C:12]2[O:16][N:15]=[C:14]([C:17]3[CH:25]=[CH:24][C:20]([C:21]([NH:52][CH2:51][CH2:49][OH:50])=[O:22])=[CH:19][CH:18]=3)[N:13]=2)=[CH:9][C:8]=1[CH3:26])[CH2:4][CH3:5])[CH3:2]
Reactant: NCCO
Reactant: CCN(CC)Cc1sc(-c2nc(-c3ccc(C(=O)O)cc3)no2)cc1C
Agent: CCN=C=NCCCN(C)C
Agent: Cl
Agent: On1nnc2ccccc21
Solvent: CCOC(C)=O
Solvent: CN(C)C=O
Product: CCN(CC)Cc1sc(-c2nc(-c3ccc(C(=O)NCCO)cc3)no2)cc1C
Temperature: 25 °C
Reaction time: 1 h
Yield: 64.8 %

Procedure:
4-[5-(5-Diethylaminomethyl-4-methyl-thiophen-2-yl)-[1,2,4]oxadiazol-3-yl]-benzoic acid ethyl ester (1.42 g) is prepared starting from 4-(N-hydroxycarbamimidoyl)-benzoic acid ethyl ester (1.01 g, 4.84 mmol) and 5-diethylaminomethyl-4-methyl-thiophene-2-carboxylic acid (1.00 g, 4.40 mmol) according to Method A; LC-MS: tR=0.63 min; [M+1]+=400.12; 1H NMR (CDCl3): δ 1.11 (t, J=7.0 Hz, 6H), 1.45 (t, J=7.0 Hz, 3H), 2.26 (s, 3H), 2.64 (q, J=7.0 Hz, 4H), 3.73 (s, 2H), 4.44 (q, J=7.3 Hz, 2H), 7.69 (s, 1H), 8.16-8.20 (m, 2H), 8.22-8.25 (m, 2H). This material (1.42 g, 3.58 mmol) is dissolved in 2 M LiOH in methanol (50 mL) and the mixture is stirred at rt for 20 h before it is acidified by adding aq. HCl. The mixture is extracted twice with EA. The combined organic extracts are dried over MgSO4, filtered and concentrated. The crude product is purified by prep. HPLC to give 4-[5-(5-diethylaminomethyl-4-methyl-thiophen-2-yl)-[1,2,4]oxadiazol-3-yl]-benzoic acid (710 mg) as a white solid; LC-MS: tR=0.52 min; [M+1]+=372.14. b) To a solution of 4-[5-(5-diethylaminomethyl-4-methyl-thiophen-2-yl)-[1,2,4]oxadiazol-3-yl]-benzoic acid (400 mg, 1.08 mmol) in DMF (5 mL), HOBt (160 mg, 1.19 mmol) followed by EDC HCl (227 mg, 1.19 mmol) is added. The mixture is stirred at rt for 5 min before ethanolamine (72 mg, 1.19 mmol) is added. The reaction mixture is stirred at rt for 1 h. The mixture is diluted with EA and washed with sat. aq. NaHCO3. The washing is extracted back twice with EA. The combined organic extracts are dried over MgSO4, filtered and concentrated. The crude product is purified by CC on silica gel eluting with DCM containing 4% of methanol to give the title compound (290 mg) as a white solid; LC-MS: tR=0.47 min; [M+1]+=415.14; 1H NMR (CDCl3): δ1.11 (t, J=7.0 Hz, 6H), 2.26 (s, 3H), 2.64 (q, J=7.0 Hz, 4H), 3.67-3.72 (m, 2H), 3.73 (s, 2H), 3.90 (t, J=4.8 Hz, 2H), 6.69 (t br, J=5.3 Hz, 1H), 7.68 (s, 1H), 7.91-7.95 (m, 2H), 8.22-8.26 (m, 2H).