Azzindani/Open_Reaction_Data huggingface dataset:
Reaction SMILES: [CH2:1]([O:5][C:6]1[N:14]=[C:13]2[C:9]([N:10]=[C:11]([O:21]C)[N:12]2[CH2:15][CH:16]2[CH2:20][CH2:19][O:18][CH2:17]2)=[C:8]([NH2:23])[N:7]=1)[CH2:2][CH2:3][CH3:4].Cl.O.[OH-].[Na+]>CO.O1CCOCC1>[NH2:23][C:8]1[N:7]=[C:6]([O:5][CH2:1][CH2:2][CH2:3][CH3:4])[N:14]=[C:13]2[C:9]=1[NH:10][C:11](=[O:21])[N:12]2[CH2:15][CH:16]1[CH2:20][CH2:19][O:18][CH2:17]1
Reactant: CCCCOc1nc(N)c2nc(OC)n(CC3CCOC3)c2n1
Agent: Cl
Agent: [Na+]
Agent: [OH-]
Solvent: CO
Solvent: C1COCCO1
Solvent: O
Product: CCCCOc1nc(N)c2[nH]c(=O)n(CC3CCOC3)c2n1
Reaction time: 4 h
Yield: 66.8 %

Procedure:
2-Butoxy-8-methoxy-9-(tetrahydrofuran-3-ylmethyl)-9H-purin-6-amine (97 mg) was dissolved in methanol (2 mL) and treated with 4N hydrogen chloride in 1,4-dioxane (1 mL). The reaction mixture was stirred for 4 hours. The reaction was stripped to dryness. Water (2 mL) and methanol (15 mL) was added to the residue and then neutralised by the addition of 2N sodium hydroxide solution. The above was stripped to near dryness (small quantity of water remaining) and the solid thus obtained was filtered (transferred and washed the solid with water (2 mL, 3 times)). The solid was dried under suction before being dried further in vacuo (50° C.) for 2 hours. This afforded the title compound as a white solid (62 mg).
Reaction SMILES: [C:1]1([C:7]2[C:11]([C:12]([F:15])([F:14])[F:13])=[C:10]([C:16]3[S:17][C:18]4[C:28]5[C:23](=[CH:24][C:25]([CH:29]=[O:30])=[CH:26][CH:27]=5)[CH2:22][CH2:21][C:19]=4[N:20]=3)[O:9][N:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C[Si]([C:35]#[N:36])(C)C.Cl>ClCCl.[I-].[Zn+2].[I-]>[OH:30][CH:29]([C:25]1[CH:24]=[C:23]2[C:28](=[CH:27][CH:26]=1)[C:18]1[S:17][C:16]([C:10]3[O:9][N:8]=[C:7]([C:1]4[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=4)[C:11]=3[C:12]([F:15])([F:14])[F:13])=[N:20][C:19]=1[CH2:21][CH2:22]2)[C:35]#[N:36]
Reactant: O=Cc1ccc2c(c1)CCc1nc(-c3onc(-c4ccccc4)c3C(F)(F)F)sc1-2
Reactant: C[Si](C)(C)C#N
Agent: Cl
Agent: [I-]
Agent: [Zn+2]
Solvent: ClCCl
Product: N#CC(O)c1ccc2c(c1)CCc1nc(-c3onc(-c4ccccc4)c3C(F)(F)F)sc1-2
Temperature: 25 °C
Reaction time: 1 h
Yield: 99.5 %

Procedure:
To 2-(3-phenyl-4-(trifluoromethyl)isoxazol-5-yl)-4,5-dihydronaphtho[2,1-d]thiazole-7-carbaldehyde (Preparation 84A, 0.175 g, 0.410 mmol) in dichloromethane (5 mL) was added zinc iodide (0.039 g, 0.123 mmol) followed by trimethylsilyl cyanide (0.083 mL, 0.616 mmol) over a period of 1 min. at room temperature. The reddish-brown reaction mixture was stirred at room temperature for 1 h. The reaction mixture was cooled to 0° C. and conc. HCl (0.068 mL, 0.821 mmol) was added over a period of 1 min. and the contents stirred at room temperature for 5 min. The reaction mixture was partitioned between dichloromethane (2×20 mL) and 10% aq. Na2S2O3 (10 mL). The dichloromethane layer was dried over sodium sulfate and concentrated to yield 2-hydroxy-2-(2-(3-phenyl-4-(trifluoromethyl)isoxazol-5-yl)-4,5-dihydronaphtho[2,1-d]thiazol-7-yl)acetonitrile (0.185 g, 0.408 mmol, 99% yield) as a yellow solid. LC/MS M+1=454.
Reaction SMILES: [CH3:1][C:2]12[C:7]([CH2:9]CC=C(C)CO)([CH3:8])[CH:6]3[CH2:16][CH:3]1[CH:4]2[CH2:5]3.CN/C(/NCCSCC1OC(CN(C)C)=CC=1)=C\[N+]([O-])=[O:22].Cl>>[CH3:1][C:2]1[C:7]([CH3:8])([CH3:9])[CH:6]([CH2:16][CH2:3][OH:22])[CH2:5][CH:4]=1
Reactant: CN/C(=C\[N+](=O)[O-])NCCSCc1ccc(CN(C)C)o1
Reactant: CC(=CCCC1(C)C2CC3C(C2)C31C)CO
Agent: Cl
Product: CC1=CCC(CCO)C1(C)C

Procedure:
5-(2,3-dimethyltricyclo[2.2.1.0(2,6)]-hept-3-yl)-2-methyl-2-penten-1-ol, or santanol.
Reaction SMILES: I[C:2]1[C:12]2[O:11][CH2:10][CH2:9][C:8]([C:13]([O:15][CH2:16][CH3:17])=[O:14])=[CH:7][C:6]=2[CH:5]=[CH:4][CH:3]=1.[C:18]([O:22][CH2:23][CH3:24])(=[O:21])[CH:19]=[CH2:20].C1(C)C=CC=CC=1P(C1C=CC=CC=1C)C1C=CC=CC=1C.C(N(CC)CC)C>C(#N)C.C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[CH2:23]([O:22][C:18](/[CH:19]=[CH:20]/[C:2]1[C:12]2[O:11][CH2:10][CH2:9][C:8]([C:13]([O:15][CH2:16][CH3:17])=[O:14])=[CH:7][C:6]=2[CH:5]=[CH:4][CH:3]=1)=[O:21])[CH3:24]
Reactant: C=CC(=O)OCC
Reactant: CCOC(=O)C1=Cc2cccc(I)c2OCC1
Agent: [Pd+2]
Agent: CC(=O)[O-]
Agent: Cc1ccccc1P(c1ccccc1C)c1ccccc1C
Solvent: CC#N
Solvent: CCN(CC)CC
Product: CCOC(=O)/C=C/c1cccc2c1OCCC(C(=O)OCC)=C2
Temperature: 100 °C
Reaction time: 5 h

Procedure:
A mixture of ethyl 2,3-dihydro-9-iodo-1-benzoxepin-4-carboxylate (0.34 g), ethyl acrylate (0.13 ml), palladium(II) acetate (2.2 mg), tri-o-tolylphosphine (6.0 mg), and triethylamine (0.15 ml) in acetonitrile (1 ml) was stirred at 100° C. under nitrogen atmosphere for 5 hours and partitioned between ethyl acetate and water. The organic layer was washed successively with water and brine, dried over anhydrous magnesium sulfate, and evaporated in vacuo. The residue was triturated in n-hexane to give a solid of ethyl 2,3-dihydro-9-[(E)-(2-ethoxycarbonylvinyl)]-1-benzoxepin-4-carboxylate (0.14 g).
Reaction SMILES: C[O:2][C:3](=O)[CH:4]([NH:16][C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])[CH2:5][CH2:6][CH2:7][C:8]1[CH:13]=[CH:12][C:11]([O:14][CH3:15])=[CH:10][CH:9]=1.[NH3:25]>CO.O>[C:20]([O:19][C:17](=[O:18])[NH:16][CH:4]([C:3](=[O:2])[NH2:25])[CH2:5][CH2:6][CH2:7][C:8]1[CH:13]=[CH:12][C:11]([O:14][CH3:15])=[CH:10][CH:9]=1)([CH3:23])([CH3:22])[CH3:21]
Reactant: N
Reactant: COC(=O)C(CCCc1ccc(OC)cc1)NC(=O)OC(C)(C)C
Solvent: CO
Solvent: O
Product: COc1ccc(CCCC(NC(=O)OC(C)(C)C)C(N)=O)cc1
Temperature: 25 °C
Reaction time: 8 h

Procedure:
A solution of 2-tert-butoxycarbonylamino-5-(4-methoxy-phenyl)-pentanoic acid methyl ester (5.6 g, 16.6 mmol) in MeOH (100 mL) is treated with aqueous ammonia solution (100 mL of a 28% solution in water, 28 mmol) and stirred at RT overnight. The organic solvent is removed in vacuo and the remaining aqueous portion is extracted with EtOAc (×3). The combined organic extracts are washed with brine and then dried (MgSO4) and concentrated in vacuo to afford the title compound as a yellow oil.
Reaction SMILES: [Cl:1][C:2]1[C:11]2[C:6](=[CH:7][C:8]([O:17][CH2:18][CH2:19][O:20][CH3:21])=[C:9]([O:12][CH2:13][CH2:14][O:15][CH3:16])[CH:10]=2)[N:5]=[CH:4][N:3]=1.[C:22]([C:24]1[CH:25]=[C:26]([CH:28]=[CH:29][CH:30]=1)[NH2:27])#[CH:23]>CO>[CH3:16][O:15][CH2:14][CH2:13][O:12][C:9]1[CH:10]=[C:11]2[C:2]([NH:27][C:26]3[CH:28]=[CH:29][CH:30]=[C:24]([C:22]#[CH:23])[CH:25]=3)=[N:3][CH:4]=[N:5][C:6]2=[CH:7][C:8]=1[O:17][CH2:18][CH2:19][O:20][CH3:21].[ClH:1]
Reactant: C#Cc1cccc(N)c1
Reactant: COCCOc1cc2ncnc(Cl)c2cc1OCCOC
Solvent: CO
Product: C#Cc1cccc(Nc2ncnc3cc(OCCOC)c(OCCOC)cc23)c1
Product: Cl
Temperature: 37.5 °C

Procedure:
4-chloro-6,7-bis-(2-methoxyethoxy)quinazoline (50 g, 0.1598 mol) was added to methanol (900 ml, 18 vol.) and the mixture was heated to 35-40° C. to obtain a uniform suspension. 3-Ethynylaniline (20.6 g, 0.1758 mol) was mixed with 100 ml (2 vol.) of methanol and added drop wise into the uniform suspension of 4-chloro-6,7-bis-(2-methoxyethoxy)quinazoline over a period of 15 min at 35-40° C. The temperature of the reaction mixture was slowly raised to 60-65° C. and maintained for 2-3 hours. The reaction was monitored by TLC as well as HPLC. When the 4-chloro-6,7-bis-(2-methoxyethoxy)-quinazoline content in the reaction mixture was not more than 3%, the reaction mixture was cooled to 25-30° C. and crude erlotinib hydrochloride was isolated by filtration. The cake was washed with 100 ml (2 vol.) of methanol and suck dried.
Reaction SMILES: [H-].[Na+].[CH:3]1([SH:6])[CH2:5][CH2:4]1.F[C:8]1[CH:13]=[CH:12][C:11]([N+:14]([O-:16])=[O:15])=[CH:10][CH:9]=1>C1COCC1.O>[CH:3]1([S:6][C:8]2[CH:13]=[CH:12][C:11]([N+:14]([O-:16])=[O:15])=[CH:10][CH:9]=2)[CH2:5][CH2:4]1
Reactant: O=[N+]([O-])c1ccc(F)cc1
Reactant: SC1CC1
Agent: [H-]
Agent: [Na+]
Solvent: C1CCOC1
Solvent: O
Product: O=[N+]([O-])c1ccc(SC2CC2)cc1
Temperature: 25 °C
Reaction time: 0.5 h
Yield: 61 %

Procedure:
1.78 g (44.6 mmol) of sodium hydride (60%) was added in portions to a solution of 3.00 g (40.5 mmol) of cyclopropane thiol (preparation according to: E. Block et al., J. Am. Chem. Soc. 1992, 114, 3492) in 100 ml THF/100 ml diethyl ether and was stirred for 30 minutes at room temperature. Then 6.00 g (38.7 mmol) of 1-fluoro-4-nitrobenzene was added in portions. The mixture was stirred for 2 hours at 40° C. After it had cooled, the mixture was put in water and was extracted with benzene (3×). The combined organic phases were concentrated by evaporation and the residue was purified chromatographically (hexane/ethyl acetate 95:5). 4.6 g (23.6 mmol; yield: 61%) of the product was obtained.
Reaction SMILES: [NH2:1][CH2:2][CH:3]1[CH2:8][CH2:7][NH:6][CH2:5][CH2:4]1.C(=O)([O-])[O-].[K+].[K+].[CH3:15][N:16]1[C:20]2[CH:21]=[CH:22][CH:23]=[CH:24][C:19]=2[N:18]=[C:17]1Cl>C1(C)C=CC=CC=1>[CH3:15][N:16]1[C:20]2[CH:21]=[CH:22][CH:23]=[CH:24][C:19]=2[N:18]=[C:17]1[N:6]1[CH2:7][CH2:8][CH:3]([CH2:2][NH2:1])[CH2:4][CH2:5]1
Reactant: Cn1c(Cl)nc2ccccc21
Reactant: NCC1CCNCC1
Agent: O=C([O-])[O-]
Agent: [K+]
Solvent: Cc1ccccc1
Product: Cn1c(N2CCC(CN)CC2)nc2ccccc21

Procedure:
27 g of 4-aminomethylpiperidine are placed in 300 ml of anhydrous toluene in the presence of 33 g of potassium carbonate and of 33 g of 1-methyl-2-chlorobenzimidazole. The mixture is subjected to reflux for 48 hours. After evaporation, the residue is taken up in ether and an excess of hydrochloric ether. The precipitate formed is spun down, washed with ether, and then taken up in 750 ml of water and 30% caustic soda is added to give a basic pH.
Reaction SMILES: [F:1][CH:2]([F:34])[C:3]1[C:7]([C:8]2[N:9](O)[C:10]3[C:16]4[CH:17]=[CH:18][N:19]=[CH:20][C:15]=4[NH:14][C:13]4[N:21]=[CH:22][CH:23]=[CH:24][C:12]=4[C:11]=3[N:25]=2)=[C:6]([CH3:27])[N:5]([CH:28]2[CH2:33][CH2:32][CH2:31][CH2:30][O:29]2)[N:4]=1.CN(C)C(=O)C.P(OC(C)C)(OC(C)C)OC(C)C>O>[F:34][CH:2]([F:1])[C:3]1[C:7]([C:8]2[NH:9][C:10]3[C:16]4[CH:17]=[CH:18][N:19]=[CH:20][C:15]=4[NH:14][C:13]4[N:21]=[CH:22][CH:23]=[CH:24][C:12]=4[C:11]=3[N:25]=2)=[C:6]([CH3:27])[N:5]([CH:28]2[CH2:33][CH2:32][CH2:31][CH2:30][O:29]2)[N:4]=1
Reactant: Cc1c(-c2nc3c(n2O)-c2ccncc2Nc2ncccc2-3)c(C(F)F)nn1C1CCCCO1
Agent: CC(C)OP(OC(C)C)OC(C)C
Solvent: CC(=O)N(C)C
Solvent: O
Product: Cc1c(-c2nc3c([nH]2)-c2ccncc2Nc2ncccc2-3)c(C(F)F)nn1C1CCCCO1

Procedure:
A solution of 2-[3-(difluoromethyl)-5-methyl-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazol-4-yl]imidazo[4,5-d]dipyrido[2,3-b:4′,3′-f]azepin-3(8H)-ol (1.94 g, 4.17 mmol) in N,N-dimethylacetamide (30 mL, 0.3226 mol) was heated at 160° C. for 2.5 hours with triisopropyl phosphite (4.0 mL, 0.0174 mol). The reaction was allowed to cool and then poured into 50 mL water. The reaction was extracted with ethyl acetate and the organic extracts were washed with water, saturated NaCl, dried (MgSO4) and concentrated in vacuo. The reaction was chromatographed on silica gel using 3% Et3N with ethyl acetate, and 3% MeOH/ethyl acetate to give the desired product. 1H NMR (CDCl3): δ 9.52 and 9.45 (brs, 1H), 7.87-8.11 (m, 4H), 6.74-7.61 (m, 3H), 6.10 and 6.13 (br s, 1H), 5.40 (dd, 1H), 4.11 (m, 1H), 3.71 (m, 1H), 2.80 (s, 3H), 2.44 (m, 1H), 2.17 (m, 1H), 1.95 (m, 1H), 1.60-1.80 (m, 3H). Mass spec(EI) m/z=450 (M+1).
Reaction SMILES: [CH3:1][O:2][C:3](=[O:11])[C:4]1[CH:9]=[C:8](Br)[CH:7]=[N:6][CH:5]=1.[NH:12]1[CH2:17][CH2:16][O:15][CH2:14][CH2:13]1>C1(C)C=CC=CC=1.C(OCC)C.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].C1C=CC(P(C2C(C3C(P(C4C=CC=CC=4)C4C=CC=CC=4)=CC=C4C=3C=CC=C4)=C3C(C=CC=C3)=CC=2)C2C=CC=CC=2)=CC=1>[N:12]1([C:8]2[CH:7]=[N:6][CH:5]=[C:4]([CH:9]=2)[C:3]([O:2][CH3:1])=[O:11])[CH2:17][CH2:16][O:15][CH2:14][CH2:13]1
Reactant: COC(=O)c1cncc(Br)c1
Reactant: C1COCCN1
Agent: [Pd]
Agent: O=C(/C=C/c1ccccc1)/C=C/c1ccccc1
Agent: c1ccc(P(c2ccccc2)c2ccc3ccccc3c2-c2c(P(c3ccccc3)c3ccccc3)ccc3ccccc23)cc1
Solvent: Cc1ccccc1
Solvent: CCOCC
Product: COC(=O)c1cncc(N2CCOCC2)c1
Temperature: 110 °C
Yield: 42 %

Procedure:
To a mixture of methyl-5-bromonicotinate (10 g, 0.045 mol) and morpholine (4.6 g, 0.054 mol) in dry toluene (100 mL) was added fused CsCO3 (30 g, 0.09 mol) with stirring under argon. To this mixture was added BINAP (0.45 g, 0.0005 mol), Pd2(dba)3 (0.22 g, 0.00015 mol) and then the reaction mixture was refluxed at 110° C. for 50 h. The reaction mixture was cooled down to r.t. and diluted with diethyl ether (400 ml) and filtered through celite. The filtrate was concentrated under vacuum and purified by flash column chromatography (CHCl3/MeOH, 4:1) to give 4.2 g (41%) of methyl 5-morpholin-4-ylnicotinate as a liquid. TLC—Chloroform/Methanol (8/2): Rf=0.7.
Reaction SMILES: [CH3:1][O:2][CH2:3][CH2:4][CH2:5][Mg]Cl.Cl[CH2:9][CH2:10][CH2:11][O:12][CH3:13].Cl[CH:15]([PH2:17])Cl>>[CH3:1][O:2][CH2:3][CH2:4][CH2:5][P:17]([CH2:9][CH2:10][CH2:11][O:12][CH3:13])[CH3:15]
Reactant: COCCC[Mg]Cl
Reactant: COCCCCl
Reactant: PC(Cl)Cl
Product: COCCCP(C)CCCOC
Yield: 68 %

Procedure:
3-Methoxypropyl-magnesium chloride was generated from 1 -chloro-3-methoxypropane (10.0 g, 92.0 mmol) and Mg metal (2.26 g, 93.0 mmol) and reacted with dichloromethylphosphine (4.1 ml, 0.46 mmol) according to General Method I. The residue was purified by fractional distillation (bp=110° C. @2.8 mm Hg) affording 5.9 g (68%) of bis(3-methoxypropyl)methylphosphine as a mobile colorless oil. 31 pNMR(Benzene-d6):δ-43.3. MS (HREI) m/z=192.1279 (192.1279 calc'd for C9H21O2P).
Reaction SMILES: C(O[CH:5]=[CH2:6])(=O)C.OS(O)(=O)=O.CCOC(C)=O.[I:18][C:19]1[N:27]=[C:26]2[C:22]([N:23]=[CH:24][NH:25]2)=[C:21]([Cl:28])[N:20]=1>[Hg](OC(C)=O)OC(C)=O>[Cl:28][C:21]1[N:20]=[C:19]([I:18])[N:27]=[C:26]2[C:22]=1[N:23]=[CH:24][N:25]2[CH:5]=[CH2:6]
Reactant: C=COC(C)=O
Reactant: Clc1nc(I)nc2[nH]cnc12
Agent: CC(=O)O[Hg]OC(C)=O
Agent: O=S(=O)(O)O
Solvent: CCOC(C)=O
Product: C=Cn1cnc2c(Cl)nc(I)nc21
Temperature: 47.5 °C
Reaction time: 8 h

Procedure:
In a 250 mL pressure tube, Hg(OAc)2 (2.52 g, 7.88 mmol) was suspended in vinyl acetate (73 mL, 788 mmol). To this suspension was added H2SO4/EtOAc (1.5 mL/15 mL). A clear solution was formed. The 2-iodo-6-chloro-9H-purine (22.1 g, 78.8 mmol) was added. A suspension formed again. It was degassed and stirred at 45-50° C. overnight. A dark solution was formed. The mixture was passed through celite, washed with EtOAc. Organic layer was washed with Sat. NaHCO3> dried Na2SO4. The product was purified on silica gel chromatography column (1-5% MeOH/DCM).
Reaction SMILES: [Cl:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[CH:12]=[CH:11][C:10]([C:13]([OH:15])=O)=[CH:9]2)=[CH:4][CH:3]=1.[NH2:16][C:17]1[CH:18]=[CH:19][C:20]([N:25]2[CH2:30][CH2:29][N:28]([CH2:31][CH2:32][OH:33])[CH2:27][CH2:26]2)=[C:21]([CH:24]=1)[C:22]#[N:23]>>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([N:8]2[CH:12]=[CH:11][C:10]([C:13]([NH:16][C:17]3[CH:18]=[CH:19][C:20]([N:25]4[CH2:26][CH2:27][N:28]([CH2:31][CH2:32][OH:33])[CH2:29][CH2:30]4)=[C:21]([C:22]#[N:23])[CH:24]=3)=[O:15])=[CH:9]2)=[CH:6][CH:7]=1
Reactant: O=C(O)c1ccn(-c2ccc(Cl)cc2)c1
Reactant: N#Cc1cc(N)ccc1N1CCN(CCO)CC1
Product: N#Cc1cc(NC(=O)c2ccn(-c3ccc(Cl)cc3)c2)ccc1N1CCN(CCO)CC1
Yield: 27.1 %

Procedure:
By the reaction and treatment in the same manner as in Example 64 using 1-(4-chlorophenyl)pyrrole-3-carboxylic acid (2 g) and 5-amino-2-[4-(2-hydroxyethyl)piperazin-1-yl]benzonitrile (2.67 g), the title compound (1.1 g) was obtained, melting point: 196° C.
Reaction SMILES: [F:1][C:2]([F:24])([F:23])[C:3]1[CH:4]=[C:5]([C:13]2[N:17]=[CH:16][N:15](/[CH:18]=[CH:19]\[C:20](O)=[O:21])[N:14]=2)[CH:6]=[C:7]([C:9]([F:12])([F:11])[F:10])[CH:8]=1.[O:25]1[CH2:30][CH2:29][N:28]([CH2:31][C:32]([NH:34][NH2:35])=[O:33])[CH2:27][CH2:26]1.C(P1(=O)OP(CCC)(=O)OP(CCC)(=O)O1)CC.CCN(C(C)C)C(C)C>C(Cl)Cl.CCOC(C)=O>[F:24][C:2]([F:1])([F:23])[C:3]1[CH:4]=[C:5]([C:13]2[N:17]=[CH:16][N:15](/[CH:18]=[CH:19]\[C:20]([N:34]([C:32](=[O:33])[CH2:31][N:28]3[CH2:29][CH2:30][O:25][CH2:26][CH2:27]3)[NH2:35])=[O:21])[N:14]=2)[CH:6]=[C:7]([C:9]([F:12])([F:10])[F:11])[CH:8]=1
Reactant: O=C(O)/C=C\n1cnc(-c2cc(C(F)(F)F)cc(C(F)(F)F)c2)n1
Reactant: NNC(=O)CN1CCOCC1
Agent: CCCP1(=O)OP(=O)(CCC)OP(=O)(CCC)O1
Solvent: CCN(C(C)C)C(C)C
Solvent: ClCCl
Solvent: CCOC(C)=O
Product: NN(C(=O)/C=C\n1cnc(-c2cc(C(F)(F)F)cc(C(F)(F)F)c2)n1)C(=O)CN1CCOCC1
Temperature: -60 °C
Reaction time: 1 h
Yield: 14.3 %

Procedure:
In a 50 mL, 3-neck round-bottom flask, (Z)-3-(3-(3,5-bis(trifluoromethyl)phenyl)-1H-1,2,4-triazol-1-yl)acrylic acid (Example 1, Step 4; 0.5 g, 1.0 eq.) was dissolved in CH2Cl2:EtOAc (20 mL, 2:1) and cooled to −60° C. where 2-morpholinoacetohydrazide (0.23 g, 1.0 eq.) was introduced dropwise. T3P (50% in EtOAc) (1.27 mL, 1.5 eq.) was added dropwise followed by DIPEA (0.96 mL, 2 eq.) and the reaction mixture was stirred for 1 h at −60° C. The reaction mixture was concentrated under reduced pressure (25° C., 20 mm Hg) to afford the crude product that was purified by column chromatography (60/120 silica gel) using methanol/dichloromethane gradient (the column was packed in dichloromethane and the desired compound started eluting from 3% methanol/dichloromethane). Fractions containing the desired compounds were combined to afford (Z)-3-(3-(3,5-bis(trifluoromethyl)phenyl)-1H-1,2,4-triazol-1-yl)-N-(2-morpholinoacetyl)acrylohydrazide (0.1 g, yield: 14%).
Reaction SMILES: [CH3:1][C:2]1([CH3:39])[CH2:11][CH:10]=[C:9]([C:12]2[CH:17]=[CH:16][C:15](O[Si](CC(C)C)(C)C)=[CH:14][CH:13]=2)[C:8]2[CH:7]=[C:6]([C:26]#[C:27][C:28]3[CH:38]=[CH:37][C:31]([C:32]([O:34]CC)=[O:33])=[CH:30][CH:29]=3)[CH:5]=[CH:4][C:3]1=2.O[Li].O.[CH2:43]1COCC1.O>>[CH3:39][C:2]1([CH3:1])[CH2:11][CH:10]=[C:9]([C:12]2[CH:17]=[CH:16][C:15]([CH3:43])=[CH:14][CH:13]=2)[C:8]2[CH:7]=[C:6]([C:26]#[C:27][C:28]3[CH:29]=[CH:30][C:31]([C:32]([OH:34])=[O:33])=[CH:37][CH:38]=3)[CH:5]=[CH:4][C:3]1=2
Reactant: CCOC(=O)c1ccc(C#Cc2ccc3c(c2)C(c2ccc(O[Si](C)(C)CC(C)C)cc2)=CCC3(C)C)cc1
Reactant: C1CCOC1
Agent: [Li]O
Solvent: O
Product: Cc1ccc(C2=CCC(C)(C)c3ccc(C#Cc4ccc(C(=O)O)cc4)cc32)cc1

Procedure:
A solution of 142.6 mg (0.339 mmol) of ethyl 4-[(5,6-dihydro-5,5-dimethyl-8-(4-methylphenyl)-2-naphthalenyl)ethynyl]benzoate (Compound 1) and 35.6 mg (0.848 mmol) of LiOH—H2O in 12 ml of THF/water (4:1, v/v), was stirred overnight at room temperature. The reaction mixture was extracted with hexanes, and the hexane fraction extracted with 5% aqueous NaOH. The aqueous layers were combined and acidified with 1 M HCl, and then extracted with EtOAc and Et2O. The combined organic layers were dried over Na2SO4 and concentrated in vacuo to give the title compound as a colorless solid. 1H NMR (d6-DMSO): δ 7.91 (2H, d, J=8.4 Hz), 7.60 (2H, d, J=8.4 Hz), 7.47 (2H, s), 7.23 (4H, q, J=8.1 Hz), 7.01 (1H, s), 6.01 (1H, t, J=4.6 Hz), 2.35 (3H, s), 2.33 (2H, d, J=4.8 Hz), 1.30 (6H, s).
Reaction SMILES: [F:1][C:2]1[C:3](F)=[C:4]2[O:9][CH2:8][C@H:7]([CH3:10])[N:6]3[CH:11]=[C:12]([C:17]([OH:19])=[O:18])[C:13](=[O:16])[C:14]([CH:15]=1)=[C:5]23.[CH3:21][N:22]1[CH2:27][CH2:26][NH:25][CH2:24][CH2:23]1>C(O)C(C)C>[CH3:10][C@@H:7]1[N:6]2[C:5]3[C:14]([C:13]([C:12]([C:17]([OH:19])=[O:18])=[CH:11]2)=[O:16])=[CH:15][C:2]([F:1])=[C:3]([N:25]2[CH2:26][CH2:27][N:22]([CH3:21])[CH2:23][CH2:24]2)[C:4]=3[O:9][CH2:8]1
Reactant: C[C@H]1COc2c(F)c(F)cc3c(=O)c(C(=O)O)cn1c23
Reactant: CN1CCNCC1
Solvent: CC(C)CO
Product: C[C@H]1COc2c(N3CCN(C)CC3)c(F)cc3c(=O)c(C(=O)O)cn1c23
Temperature: 0 °C
Reaction time: 60 h
Yield: 73.4 %

Procedure:
3 g (10.67 mmole) of (S)-(−)-9,10-difluoro-3-methyl-7-oxo-2,3-dihydro-7H-pyrido [1,2,3-de] [1,4]benzoxazine-6-carboxylic acid was put in suspension in 21 mL of isobutanol and 4.75 mL (43 mmole) of N-methyl piperazine. The reaction mixture was heated to reflux for 6 hours, then slurried at ambient temperature for 60 hours and heated again to reflux for 7 hours until completion of the reaction. During that time, the reaction mixture became soluble at reflux temperature. The mixture was then cooled to 0° C., filtered under vacuum, washed with 7 mL isobutanol and 10 mL n-heptane, and dried overnight to obtain 2.83 g (77.3%) of levofloxacin.
Reaction SMILES: [C:1]([O-])([O-])=O.[K+].[K+].CB1OB(C)OB(C)O1.Cl[C:17]1[N:22]=[CH:21][C:20]([C:23]2[N:32]([C:33]3[CH:38]=[CH:37][C:36]([CH:39]4[CH2:43][CH2:42][CH2:41][CH2:40]4)=[CH:35][CH:34]=3)[C:31](=[O:44])[C:30]3[C:25](=[CH:26][CH:27]=[CH:28][CH:29]=3)[N:24]=2)=[CH:19][CH:18]=1>O1CCOCC1.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>[CH:39]1([C:36]2[CH:37]=[CH:38][C:33]([N:32]3[C:31](=[O:44])[C:30]4[C:25](=[CH:26][CH:27]=[CH:28][CH:29]=4)[N:24]=[C:23]3[C:20]3[CH:21]=[N:22][C:17]([CH3:1])=[CH:18][CH:19]=3)=[CH:34][CH:35]=2)[CH2:40][CH2:41][CH2:42][CH2:43]1
Reactant: O=c1c2ccccc2nc(-c2ccc(Cl)nc2)n1-c1ccc(C2CCCC2)cc1
Reactant: O=C([O-])[O-]
Agent: c1ccc([P](c2ccccc2)(c2ccccc2)[Pd]([P](c2ccccc2)(c2ccccc2)c2ccccc2)([P](c2ccccc2)(c2ccccc2)c2ccccc2)[P](c2ccccc2)(c2ccccc2)c2ccccc2)cc1
Agent: CB1OB(C)OB(C)O1
Agent: [K+]
Solvent: C1COCCO1
Product: Cc1ccc(-c2nc3ccccc3c(=O)n2-c2ccc(C3CCCC3)cc2)cn1
Yield: 27.4 %

Procedure:
6-chloro-3-pyridinecarboxaldehyde (0.177 g, 1.20 mmol) and CuCl2 (0.335 g, 2.40 mmol) were added to a solution of 2-amino-N-(4-cyclopentylphenyl)benzamide (0.350 g, 1.20 mmol) in EtOH (30 mL), and refluxed for 5 hours. The reaction mixture was concentrated in vacuo and the residue was dissolved in EtOAc. The organics were washed with H2O, then brine, dried (Na2SO4), filtered, and concentrated in vacuo. Purification by flash chromatography on silica gel, eluting with 15% to 60% EtOAc in heptane, afforded 2-(6-chloropyridin-3-yl)-3-(4-cyclopentylphenyl)quinazolin-4(3H)-one (0.260 g, 54%). Pd(PPh3)4 (0.150 g, 0.12 mmol), K2CO3 (0.270 g, 1.90 mmol), and trimethylboroxine (0.18 mL, 1.20 mmol) were added to a solution of 2-(6-chloropyridin-3-yl)-3-(4-cyclopentylphenyl)quinazolin-4(3H)-one (0.260 g, 0.65 mmol) in dioxane (15 mL) and heated to reflux temperature for 20 minutes. The reaction mixture was filtered through Celite®, washed with EtOAc. The filtrate was concentrated and purified by flash chromatography on silica gel, eluting with 30% to 100% EtOAc in heptane, to afford the title compound as a white solid (0.068 g, 27%). 1H-NMR (300 MHz, DMSO-d6): δ8.45 (s, 1H), 8.19 (d, J=7.4 Hz, 1H), 7.84-8.00 (m, 1H), 7.78 (d, J=7.9 Hz, 1H), 7.50-7.70 (m, 2H), 7.17-7.31 (m, 4H), 7.11 (d, J=8.0 Hz, 1H), 2.85-3.06 (m, 1H), 2.38 (s, 3H), 1.85-2.09 (m, 2H), 1.34-1.84 (m, 6H). MS (APCI) m/z: 382 (M+H)+.
Reaction SMILES: [Cl:1][C:2]1[CH:3]=[C:4]([CH2:8][C:9]([OH:11])=O)[CH:5]=[CH:6][CH:7]=1.[NH2:12][CH:13]([CH2:21][CH3:22])[C:14]([O:16][CH2:17][CH:18]([CH3:20])[CH3:19])=[O:15]>>[CH2:17]([O:16][C:14](=[O:15])[CH:13]([NH:12][C:9](=[O:11])[CH2:8][C:4]1[CH:5]=[CH:6][CH:7]=[C:2]([Cl:1])[CH:3]=1)[CH2:21][CH3:22])[CH:18]([CH3:19])[CH3:20]
Reactant: O=C(O)Cc1cccc(Cl)c1
Reactant: CCC(N)C(=O)OCC(C)C
Product: CCC(NC(=O)Cc1cccc(Cl)c1)C(=O)OCC(C)C

Procedure:
Following General Procedure I′ above and using 3-chlorophenylacetic acid (Aldrich) and iso-butyl 2-aminobutyrate (prepared following General Procedure J′ above), the title compound was prepared. The reaction was monitored by tlc on silica gel and purification was by filtration as described in the general procedure. NMR data was as follows:
Reaction SMILES: [Cl:1][C:2]1[CH:38]=[CH:37][C:5]2[NH:6][C:7]([C@@H:9]([NH:11][C:12](=[O:36])[C:13]3[CH:18]=[CH:17][C:16]([C:19]([N:21]4[CH2:25][CH2:24][CH2:23][C@H:22]4[CH2:26][NH:27]C(OC(C)(C)C)=O)=[O:20])=[C:15]([Cl:35])[CH:14]=3)[CH3:10])=[N:8][C:4]=2[CH:3]=1.FC(F)(F)C(O)=O.ClCCl.CO.N.ClCl>>[Cl:1][C:2]1[CH:38]=[CH:37][C:5]2[NH:6][C:7]([C@@H:9]([NH:11][C:12](=[O:36])[C:13]3[CH:18]=[CH:17][C:16]([C:19]([N:21]4[CH2:25][CH2:24][CH2:23][C@H:22]4[CH2:26][NH2:27])=[O:20])=[C:15]([Cl:35])[CH:14]=3)[CH3:10])=[N:8][C:4]=2[CH:3]=1
Reactant: C[C@H](NC(=O)c1ccc(C(=O)N2CCC[C@H]2CNC(=O)OC(C)(C)C)c(Cl)c1)c1nc2cc(Cl)ccc2[nH]1
Agent: ClCl
Agent: N
Solvent: ClCCl
Solvent: CO
Solvent: O=C(O)C(F)(F)F
Product: C[C@H](NC(=O)c1ccc(C(=O)N2CCC[C@H]2CN)c(Cl)c1)c1nc2cc(Cl)ccc2[nH]1
Yield: 91 %

Procedure:
Prepared analogously to Example 17 from N-[(1S)-1-(5-chloro-1H-benzimidazol-2-yl)ethyl]-3-chloro-4-[(2S)-2-(N-tert-butoxycarbonylaminomethyl)pyrrolidin-1-ylcarbonyl]benzamide and trifluoroacetic acid. Yield: 91%; Rf value: 0.10 (silica gel; dichloromethane/methanol/ammonia=9:1:0.1); C22H23Cl2N5O2 (460.36); mass spectrum: (M+H)+=460/462 (chlorine isotope) and (M−H)−=458/460 (chlorine isotope).