Azzindani/Open_Reaction_Data huggingface dataset:
Reaction SMILES: [F:1][C:2]1[CH:3]=[C:4]([N:9]2[C:14](=[O:15])[C:13]([C:16]3[CH:21]=[CH:20][C:19]([F:22])=[CH:18][CH:17]=3)=[C:12]([C:23]3[CH:28]=[CH:27][C:26]([S:29](C)(=[O:31])=[O:30])=[CH:25][CH:24]=3)[CH:11]=[N:10]2)[CH:5]=[CH:6][C:7]=1[F:8].[NH3:33]>>[F:1][C:2]1[CH:3]=[C:4]([N:9]2[C:14](=[O:15])[C:13]([C:16]3[CH:21]=[CH:20][C:19]([F:22])=[CH:18][CH:17]=3)=[C:12]([C:23]3[CH:28]=[CH:27][C:26]([S:29]([NH2:33])(=[O:31])=[O:30])=[CH:25][CH:24]=3)[CH:11]=[N:10]2)[CH:5]=[CH:6][C:7]=1[F:8]
Reactant: N
Reactant: CS(=O)(=O)c1ccc(-c2cnn(-c3ccc(F)c(F)c3)c(=O)c2-c2ccc(F)cc2)cc1
Product: NS(=O)(=O)c1ccc(-c2cnn(-c3ccc(F)c(F)c3)c(=O)c2-c2ccc(F)cc2)cc1

Procedure:
The title compound was prepared according to Example 384 substituting 2-(3,4-difluorophenyl)-4-(4-fluorophenyl)-5-[4-(methylsulfonyl)phenyl]-3(2H)-pyridazinone (Example 182) in place of 2-benzyl-4-(4-fluorophenyl)-5-[4-(methylsulfonyl)phenyl]-3(2H)-pyridazinone (yield: 950 mg, 54%). mp 177–181° C. 1H NMR (300 MHz, DMSO-d6) δ 7.15 (t, 2H), 7.29 (m, 2H), 7.43 (s, 1H), 7.45 (bs, 2H), 7.59 (m, 2H), 7.76 (d, J=9 Hz, 2H), 7.85 (m, 1H), 8.27 (s, 1H). MS (DCI/NH3) m/z 458 (M+H)+, 475 (M+NH4)+. Anal. calc. for C22H14F3N3O3S: C, 57.77; H, 3.08; N, 9.19. Found, C, 57.22; H, 3.28; N, 8.99.
Reaction SMILES: [Cl:1][C:2]1[CH:8]=[CH:7][CH:6]=[C:4]([NH2:5])[C:3]=1[CH3:9].[C:10](O)(=[O:12])[CH3:11].C(OC(=O)C)(=O)C>O>[CH3:9][C:3]1[C:2]([Cl:1])=[CH:8][CH:7]=[CH:6][C:4]=1[NH:5][C:10]([CH3:11])=[O:12]
Reactant: Cc1c(N)cccc1Cl
Reactant: CC(=O)O
Solvent: O
Solvent: CC(=O)OC(C)=O
Product: CC(=O)Nc1cccc(Cl)c1C

Procedure:
3-Chloro-o-toluidine (90 g) in a mixture of glacial acetic acid (90 ml) and acetic anhydride (90 ml) was heated on a steam bath for 10 minutes. The solution obtained was then poured into water. A colourless powder precipitated, which was filtered off and dried to give 3-chloro-2-methylacetanilide (104 g), m.p. 156°-159° C., which was then dissolved with stirring in concentrated sulphuric acid (230 ml), while maintaining the temperature at not more than 30° C. The stirred solution was maintained at 5°-10° C. whilst concentrated nitric acid (38 ml; S.G. 1.42) was added during 30 minutes. The solution obtained was then stirred at 0° C. for one hour and then poured on to ice. The solid precipitate which was obtained was separated by filtration, washed with water and dried, to give a mixture of nitro-acetanilides (145 g), m.p. 135°-147° C., in the form of a yellow powder. This mixture of nitroacetanilides (94 g) was then heated at reflux for 6 hours in a mixture of glacial acetic acid (560 ml) and concentrated hydrochloric acid (370 ml). The mixture was then cooled, poured into water (1200 ml) and basified by the addition of aqueous 50% sodium hydroxide solution. The yellow precipitate which was obtained was separated by filtration, washed with water and dried, to give a mixture of nitroanilines (72 g), m.p. 150°-164° C. This mixture was then steam-distilled in the presence of concentrated hydrochloric acid (200 ml). The solid which separated from the distillate was filtered off to give 3-chloro-2-methyl-4-nitroaniline (19.1 g), m.p. 152°-154° C., in the form of a yellow solid. Further steam distillation gave a distillate containing a mixture of products (8.6 g), m.p. 134°-138° C. The insoluble material, which had not been distilled, was separated from the acid solution to give 3-chloro-2-methyl-6-nitroaniline (18 g), m.p. 164°-165° C., in the form of a brown powder.
Reaction SMILES: [OH:1][CH:2]([C:11]1[CH:16]=[CH:15][C:14]([C:17]2[N:21]=[C:20]([C:22]3[O:26][N:25]=[C:24]([C:27]4[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=4)[C:23]=3[C:33]([F:36])([F:35])[F:34])[O:19][N:18]=2)=[CH:13][CH:12]=1)[C:3]([NH:5][CH2:6][CH2:7][C:8](O)=[O:9])=[O:4].Cl.[CH:38]1([NH2:41])[CH2:40][CH2:39]1.CN1CCOCC1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>CN(C=O)C>[CH:38]1([NH:41][C:8](=[O:9])[CH2:7][CH2:6][NH:5][C:3](=[O:4])[CH:2]([OH:1])[C:11]2[CH:12]=[CH:13][C:14]([C:17]3[N:21]=[C:20]([C:22]4[O:26][N:25]=[C:24]([C:27]5[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=5)[C:23]=4[C:33]([F:36])([F:34])[F:35])[O:19][N:18]=3)=[CH:15][CH:16]=2)[CH2:40][CH2:39]1
Reactant: NC1CC1
Reactant: O=C(O)CCNC(=O)C(O)c1ccc(-c2noc(-c3onc(-c4ccccc4)c3C(F)(F)F)n2)cc1
Agent: CN(C)C(On1nnc2cccnc21)=[N+](C)C
Agent: Cl
Agent: F[P-](F)(F)(F)(F)F
Solvent: CN(C)C=O
Solvent: CN1CCOCC1
Product: O=C(CCNC(=O)C(O)c1ccc(-c2noc(-c3onc(-c4ccccc4)c3C(F)(F)F)n2)cc1)NC1CC1
Reaction time: 1 h
Yield: 36.4 %

Procedure:
(R/S)-3-(2-Hydroxy-2-(4-(5-(3-phenyl-4-(trifluoromethyl)isoxazol-5-yl)-1,2,4-oxadiazol-3-yl)phenyl)acetamido)propanoic acid (Example 22, 22 mg, 0.044 mmol), cyclopropanamine-HCl (6.15 mg, 0.066 mmol), 4-methylmorpholine (17.72 mg, 0.175 mmol), and HATU (21.65 mg, 0.057 mmol) were added to DMF (1 mL). This was stirred for 1 h before it was purified by prep HPLC (PHENOMENEX® Luna 5u 21.2×100 mm, gradient elution with Method 1—MeOH/water containing 0.1% trifluoroacetic acid as defined above, 0% B to 100% B over 12 min, 20 mL/min, 220 nM, product retention=13.3 min) to provide (R/S)-N-cyclopropyl-3-(2-hydroxy-2-(4-(5-(3-phenyl-4-(trifluoromethyl)isoxazol-5-yl)-1,2,4-oxadiazol-3-yl)phenyl)acetamido)propanamide (9 mg, 0.016 mmol, 35.5% yield): LCMS=542.3 [M+H]+; 1H NMR (400 MHz, methanol-d4) δ ppm 8.17 (2 H, d, J=8.36 Hz), 7.54-7.75 (7 H, m), 5.10 (1 H, s), 3.45-3.55 (2 H, m), 2.56-2.68 (1 H, m), 2.37 (2 H, t, J=6.49 Hz), 0.63-0.76 (2 H, m), 0.35-0.49 (2 H, m); HPLC peak RT=8.7 min (Method A).
Reaction SMILES: [C:1]([C:3]1[C:4]([C:17]([F:20])([F:19])[F:18])=[C:5]2[C:9](=[CH:10][CH:11]=1)[N:8]([CH2:12][C:13](=[NH:16])[NH:14][OH:15])[CH:7]=[CH:6]2)#[N:2].[Cl:21][C:22]1[CH:30]=[CH:29][C:25]([C:26](O)=O)=[CH:24][CH:23]=1>>[Cl:21][C:22]1[CH:30]=[CH:29][C:25]([C:26]2[O:15][N:14]=[C:13]([CH2:12][N:8]3[C:9]4[C:5](=[C:4]([C:17]([F:19])([F:20])[F:18])[C:3]([C:1]#[N:2])=[CH:11][CH:10]=4)[CH:6]=[CH:7]3)[N:16]=2)=[CH:24][CH:23]=1
Reactant: O=C(O)c1ccc(Cl)cc1
Reactant: N#Cc1ccc2c(ccn2CC(=N)NO)c1C(F)(F)F
Product: N#Cc1ccc2c(ccn2Cc2noc(-c3ccc(Cl)cc3)n2)c1C(F)(F)F

Procedure:
Synthesized as described in Example 72 from 2-[5-cyano-4-(trifluoromethyl)-1H-indol-1-yl]-N-hydroxyethanimidamide and 4-chlorobenzoic acid: MS (ESI): m/z 403 (M+1).
Reaction SMILES: [CH2:1]([NH2:5])[CH2:2][CH2:3][CH3:4].C([CH:8]([C:22]([O-:24])=O)[C:9]([C:19]([O-:21])=O)([OH:18])[C:10](CC)(CC)[C:11]([O-:13])=O)C>CO>[CH2:1]([NH:5][C:11](=[O:13])[CH2:10][C:9]([CH2:8][C:22]([NH:5][CH2:1][CH2:2][CH2:3][CH3:4])=[O:24])([C:19]([NH:5][CH2:1][CH2:2][CH2:3][CH3:4])=[O:21])[OH:18])[CH2:2][CH2:3][CH3:4]
Reactant: CCC(C(=O)[O-])C(O)(C(=O)[O-])C(CC)(CC)C(=O)[O-]
Reactant: CCCCN
Solvent: CO
Product: CCCCNC(=O)CC(O)(CC(=O)NCCCC)C(=O)NCCCC
Temperature: 25 °C
Reaction time: 72 h
Yield: 58 %

Procedure:
N,N′,N″-tri-n-butylcitramide was prepared by the reaction of n-butylamine with triethylcitrate. To a round-bottomed flask were added triethylcitrate (31.485 g; 0.1140 mole, 1 eq) and methanol (40 mL). To this solution, n-butylamine (24.999 g; 3.00 eq) was slowly poured. The clear light yellow solution stirred for 3 days at room temperature prior to the removal of methanol via rotary evaporation at 60° C. The resulting crude tacky solid was triturated using diethylether, collected via filtration and dried in vacuo to give a white powder with a slight amine odor (23.95 g; 58% yield).
Reaction SMILES: C([O-])([O-])=O.[K+].[K+].[CH3:7][N:8]([CH3:23])[S:9]([C:12]1[CH:13]=[CH:14][C:15]([OH:22])=[C:16]([CH:21]=1)[C:17]([O:19][CH3:20])=[O:18])(=[O:11])=[O:10].Br[CH2:25][C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1>CC(C)=O>[CH3:23][N:8]([CH3:7])[S:9]([C:12]1[CH:13]=[CH:14][C:15]([O:22][CH2:25][C:26]2[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=2)=[C:16]([CH:21]=1)[C:17]([O:19][CH3:20])=[O:18])(=[O:10])=[O:11]
Reactant: COC(=O)c1cc(S(=O)(=O)N(C)C)ccc1O
Reactant: BrCc1ccccc1
Agent: O=C([O-])[O-]
Agent: [K+]
Solvent: CC(C)=O
Product: COC(=O)c1cc(S(=O)(=O)N(C)C)ccc1OCc1ccccc1
Temperature: 25 °C

Procedure:
K2CO3 (139 mg, 1.00 mmol) was added to a stirred solution of methyl 5-[(dimethylamino)sulfonyl]-2-hydroxybenzoate (may be prepared as described in Description 61; 260 mg, 1.00 mmol) in acetone (30 ml), followed by the addition of (bromomethyl)benzene (172 mg, 1.00 mmol). The mixture was heated to reflux for 16 h, and then cooled to room temperature. The mixture was filtered, and the filtrate was concentrated to yield the title compound as a colourless oil. 300 mg.
Reaction SMILES: Cl[C:2]1[N:7]=[CH:6][C:5]([C:8]([OH:10])=[O:9])=[CH:4][CH:3]=1.[CH3:11][OH:12]>C[O-].[Na+]>[CH3:11][O:12][C:2]1[N:7]=[CH:6][C:5]([C:8]([OH:10])=[O:9])=[CH:4][CH:3]=1
Reactant: CO
Reactant: O=C(O)c1ccc(Cl)nc1
Agent: C[O-]
Agent: [Na+]
Product: COc1ccc(C(=O)O)cn1

Procedure:
To a suspension of 6-chloropyridine-3-carboxylic acid (4.15 g) in methanol (40 cc), 4 M methanolic sodium methylate solution (40 cc) is added. The mixture is heated under reflux for 60 hours. The solvent is distilled off under reduced pressure (4 kPa). The residue is taken up in distilled water (100 cc) and the mixture is acidified to pH 5 with hydrochloric acid in 11.9 M aqueous solution. The precipitate produced is separated by filtration, washed with distilled water (5×10 cc) and dried in the air. 6-Methoxypyridine-3-carboxylic acid (3.3 g) is produced, m.p. 180° C.
Reaction SMILES: [C:1]([N:4]1[CH2:9][CH2:8][N:7]([C:10]2[CH:15]=[CH:14][C:13]([NH:16][C:17]3[N:25]=[C:24]4[C:20]([N:21]=[CH:22][NH:23]4)=[C:19]([N:26]4[CH2:31][CH2:30][CH2:29][CH:28]([C:32]([O:34]CCCC)=[O:33])[CH2:27]4)[N:18]=3)=[CH:12][CH:11]=2)[CH2:6][CH2:5]1)(=[O:3])[CH3:2].[Li+].[OH-].CC(O)=O>C1COCC1>[C:1]([N:4]1[CH2:5][CH2:6][N:7]([C:10]2[CH:11]=[CH:12][C:13]([NH:16][C:17]3[N:25]=[C:24]4[C:20]([N:21]=[CH:22][NH:23]4)=[C:19]([N:26]4[CH2:31][CH2:30][CH2:29][CH:28]([C:32]([OH:34])=[O:33])[CH2:27]4)[N:18]=3)=[CH:14][CH:15]=2)[CH2:8][CH2:9]1)(=[O:3])[CH3:2]
Reactant: CCCCOC(=O)C1CCCN(c2nc(Nc3ccc(N4CCN(C(C)=O)CC4)cc3)nc3[nH]cnc23)C1
Agent: [Li+]
Agent: [OH-]
Solvent: CC(=O)O
Solvent: C1CCOC1
Product: CC(=O)N1CCN(c2ccc(Nc3nc(N4CCCC(C(=O)O)C4)c4nc[nH]c4n3)cc2)CC1
Temperature: 25 °C
Reaction time: 68 h
Yield: 64.6 %

Procedure:
To a solution of butyl 1-(2-(4-(4-acetylpiperazin-1-yl)phenylamino)-9H-purin-6-yl)piperidine-3-carboxylate (76 mg, 0.15 mmol) in THF (2 mL), aq. 1N LiOH (1.00 mL, 1.00 mmol) was added. The mixture was stirred at room temperature for 68 h. HOAc (1 mL) was added to neutralize LiOH. The mixture was then purified by HPLC to give 1-(2-(4-(4-acetylpiperazin-1-yl)phenylamino)-9H-purin-6-yl)piperidine-3-carboxylic acid (45 mg), MS 465.3 (M+H); UV 205.8, 272.8 nm; and 1-(2-(4-(piperazin-1-yl)phenylamino)-9H-purin-6-yl)piperidine-3-carboxylic acid (8 mg), MS 423.3 (M+H).
Reaction SMILES: [CH2:1]([N:8]1[CH2:12][CH2:11][C@@H:10]([NH:13][C:14]([C:16]2[C:24]3[C:19](=[N:20][CH:21]=[C:22](Br)[N:23]=3)[N:18]([CH2:26][O:27][CH2:28][CH2:29][Si:30]([CH3:33])([CH3:32])[CH3:31])[CH:17]=2)=[O:15])[CH2:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[F:34][C:35]1[CH:43]=[C:42]2[C:38]([C:39]([Sn](CCCC)(CCCC)CCCC)=[N:40][N:41]2[CH3:44])=[CH:37][CH:36]=1>CN(C=O)C.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.[Cu]I>[CH2:1]([N:8]1[CH2:12][CH2:11][C@@H:10]([NH:13][C:14]([C:16]2[C:24]3[C:19](=[N:20][CH:21]=[C:22]([C:39]4[C:38]5[C:42](=[CH:43][C:35]([F:34])=[CH:36][CH:37]=5)[N:41]([CH3:44])[N:40]=4)[N:23]=3)[N:18]([CH2:26][O:27][CH2:28][CH2:29][Si:30]([CH3:33])([CH3:32])[CH3:31])[CH:17]=2)=[O:15])[CH2:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1
Reactant: C[Si](C)(C)CCOCn1cc(C(=O)N[C@@H]2CCN(Cc3ccccc3)C2)c2nc(Br)cnc21
Reactant: CCCC[Sn](CCCC)(CCCC)c1nn(C)c2cc(F)ccc12
Agent: [Cu]I
Agent: c1ccc([P](c2ccccc2)(c2ccccc2)[Pd]([P](c2ccccc2)(c2ccccc2)c2ccccc2)([P](c2ccccc2)(c2ccccc2)c2ccccc2)[P](c2ccccc2)(c2ccccc2)c2ccccc2)cc1
Solvent: CN(C)C=O
Product: Cn1nc(-c2cnc3c(n2)c(C(=O)N[C@@H]2CCN(Cc4ccccc4)C2)cn3COCC[Si](C)(C)C)c2ccc(F)cc21
Temperature: 80 °C
Reaction time: 4 h
Yield: 68.3 %

Procedure:
In a 40 ml vial containing 2-bromo-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid ((R)-1-benzyl-pyrrolidin-3-yl)-amide (1.32 g, 2.49 mmol) was added a solution of 6-fluoro-1-methyl-3-tributylstannyl-1H-indazole (1.20 g, 2.73 mmol) in DMF (25 ml). The vial was backfilled with nitrogen and tetrakis(triphenylphosphine)palladium (0) (159 mg, 0.14 mmol) and copper (I) iodide (107 mg, 0.56 mmol) were added. Again the vial was backfilled with nitrogen, then sealed and the reaction mixture was stirred in a heating block at 80° C. for 4 h. The reaction mixture was cooled to room temperature diluted with EtOAc/hexanes (100/30 ml) and washed with water (100 ml). The aqueous layer was extracted with EtOAc/hexanes (100/30 ml). The combined organic layers were washed with brine then dried over MgSO4, filtered, and concentrated. The crude was purified by flash chromatography (120 g Analogix) with 20% to 100% EtOAc in hexanes. The approriate fractions were combined and concentrated to yield 1.02 g (62%) of 2-(6-fluoro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid ((R)-1-benzyl-pyrrolidin-3-yl)-amide as a light yellow solid. LC-MS (M+H)+=600.
Reaction SMILES: [CH2:1]([O:8][CH:9]([CH2:12]Cl)[CH2:10]Cl)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH3:14][NH2:15].[OH-].[Na+]>>[CH2:1]([O:8][CH:9]1[CH2:12][N:15]([CH3:14])[CH2:10]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1
Reactant: CN
Reactant: ClCC(CCl)OCc1ccccc1
Agent: [Na+]
Agent: [OH-]
Product: CN1CC(OCc2ccccc2)C1
Temperature: 90 °C
Yield: 47 %

Procedure:
21.9 parts of 2-benzyloxy-1,3-dichloro-propane and 77.5 parts of monomethylamine (40% aqueous solution) were added to an autoclave and they were heated at 90° C. for 48 hours with agitation. The reaction mixture was cooled and 120 parts of 2 N-NaOH aqueous solution were added thereto. Then the mixture was heated to distill off excessive monomethylamine. The remaining liquor was extracted twice with 200 parts of ether, and the extract was washed with 100 parts of water, extracted with 100 parts of 2 N-HCl aqueous solution and further extracted with 50 parts of 2 N-HCl aqueous solution. The water layers were combined, washed with 50 parts of ether and made sufficiently alkaline with 2 N-NaOH aqueous solution. The liquor was extracted twice with 100 parts of ether, and the ether extract was washed in 50 parts of water and dried over anhydrous soduim sulfate. The solvent was distilled off and the residue was subjected to distillation to yield 8.3 parts of 3-benzyloxy-1-methylazetidine boiling at 80°-82° C. The yield was 47%. The results of infra-red spectrum analysis and nuclear magnetic resonance analysis of the product are as follows:
Reaction SMILES: [Cl:1][C:2]1[CH:3]=[C:4]2[N:11]([CH2:12][O:13][CH2:14][CH2:15][Si:16]([CH3:19])([CH3:18])[CH3:17])[C:10]([O:20][C@H:21]3[C@H:25]4[O:26][CH2:27][C@@H:28]([OH:29])[C@H:24]4[O:23][CH2:22]3)=[N:9][C:5]2=[N:6][C:7]=1I.[C:30]1(B(O)O)[CH2:34][CH2:33][CH2:32][CH:31]=1.[O-]P([O-])([O-])=O.[K+].[K+].[K+]>O.O1CCOCC1>[Cl:1][C:2]1[CH:3]=[C:4]2[N:11]([CH2:12][O:13][CH2:14][CH2:15][Si:16]([CH3:19])([CH3:18])[CH3:17])[C:10]([O:20][C@H:21]3[C@H:25]4[O:26][CH2:27][C@@H:28]([OH:29])[C@H:24]4[O:23][CH2:22]3)=[N:9][C:5]2=[N:6][C:7]=1[C:30]1[CH2:34][CH2:33][CH2:32][CH:31]=1
Reactant: OB(O)C1=CCCC1
Reactant: C[Si](C)(C)CCOCn1c(O[C@@H]2CO[C@H]3[C@@H]2OC[C@H]3O)nc2nc(I)c(Cl)cc21
Agent: O=P([O-])([O-])[O-]
Agent: [K+]
Solvent: C1COCCO1
Solvent: O
Product: C[Si](C)(C)CCOCn1c(O[C@@H]2CO[C@H]3[C@@H]2OC[C@H]3O)nc2nc(C3=CCCC3)c(Cl)cc21
Temperature: 85 °C

Procedure:
Palladium tetrakistriphenylphosphine (41.7 mg, 0.036 mmol) was added to a stirred suspension of (3R,3aR,6R,6aR)-6-((6-chloro-5-iodo-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-imidazo[4,5-b]pyridin-2-yl)oxy)hexahydro furo[3,2-b]furan-3-ol (Intermediate 3, 100.0 mg, 0.181 mmol), cyclopent-1-en-1-ylboronic acid (30.3 mg, 0.270 mmol), and potassium phosphate tribasic (115.0 mg, 0.542 mmol) in degassed 20% water in dioxane (1.85 mL). The reaction mixture placed under N2 before being heated to 85° C. for 10 h. The reaction mixture was cooled to room temperature. The lower aqueous layer drawn off and discarded. The remaining reaction mixture was evaporated under reduced pressure. Flash chromatography utilizing a 12 g silica RediSep Rf® Gold column and employing a 0-100% EtOAc/hexane gradient afforded the title compound. LC-MS: calculated for C23H32ClN3O5Si 493.18 observed m/e: 494.23 (M+H)+ (Rt 1.67/2.0 min)
Reaction SMILES: [CH3:1][C:2]([C:4]1[CH:9]=[CH:8][CH:7]=[C:6]([NH2:10])[CH:5]=1)=[O:3].C(N(CC)CC)C.[Br-].[Br-].[C:20]1([P:26]([C:33]2[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=2)[C:27]2[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=2)[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1>C(Cl)(Cl)(Cl)Cl>[C:2]([C:4]1[CH:5]=[C:6]([N:10]=[P:26]([C:27]2[CH:28]=[CH:29][CH:30]=[CH:31][CH:32]=2)([C:33]2[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=2)[C:20]2[CH:21]=[CH:22][CH:23]=[CH:24][CH:25]=2)[CH:7]=[CH:8][CH:9]=1)(=[O:3])[CH3:1]
Reactant: CC(=O)c1cccc(N)c1
Reactant: c1ccc(P(c2ccccc2)c2ccccc2)cc1
Agent: [Br-]
Solvent: ClC(Cl)(Cl)Cl
Solvent: CCN(CC)CC
Product: CC(=O)c1cccc(N=P(c2ccccc2)(c2ccccc2)c2ccccc2)c1
Yield: 70.9 %

Procedure:
A mixture of 67.6 gm of 3-amino acetophenone, 101.2 gm of triethylamine and 100 ml of carbon tetrachloride was added to a stirred suspension of 211 gm of triphenylphosphine dibromide in 1700 ml of carbon tetrachloride. After 20 minutes of refluxing, the mixture was filtered and evaporated to dryness. The residual solid was treated with isopropanol, filtered and dried, yielding 140.2 gm of the title compound, m.p. 135°-136° C.
Reaction SMILES: [CH2:1]([NH2:3])[CH3:2].[NH2:4][C:5]1[N:10]=[CH:9][C:8]([C:11]2[CH:12]=[C:13]([S:17](Cl)(=[O:19])=[O:18])[CH:14]=[CH:15][CH:16]=2)=[CH:7][C:6]=1[C:21]1[O:22][C:23]2[CH:29]=[CH:28][CH:27]=[CH:26][C:24]=2[N:25]=1.C(N(C(C)C)C(C)C)C>C1COCC1>[NH2:4][C:5]1[N:10]=[CH:9][C:8]([C:11]2[CH:12]=[C:13]([S:17]([NH:3][CH2:1][CH3:2])(=[O:19])=[O:18])[CH:14]=[CH:15][CH:16]=2)=[CH:7][C:6]=1[C:21]1[O:22][C:23]2[CH:29]=[CH:28][CH:27]=[CH:26][C:24]=2[N:25]=1
Reactant: CCN
Reactant: Nc1ncc(-c2cccc(S(=O)(=O)Cl)c2)cc1-c1nc2ccccc2o1
Solvent: C1CCOC1
Solvent: CCN(C(C)C)C(C)C
Product: CCNS(=O)(=O)c1cccc(-c2cnc(N)c(-c3nc4ccccc4o3)c2)c1

Procedure:
Ethylamine (2M in methanol, 0.117 ml) was added in one portion to a solution of 3-[6-amino-5-(1,3-benzoxazol-2-yl)-3-pyridyl]benzenesulphonyl chloride (0.045 g) and N-ethyl-N-isopropylpropan-2-amine (0.030 ml) in THF (2 ml) at ambient temperature, and the resultant mixture stirred for 20 hours. The mixture was then evaporated to dryness in vacuo and redissolved in NMP (2 ml), filtered and purified by preparative LCMS (Waters XBridge Prep C18 OBD column, 5μ silica, 21 mm diameter, 100 mm length), using decreasingly polar mixtures of water (containing 1% ammonia) and acetonitrile as eluents. Fractions containing the desired compound were evaporated to dryness to afford 3-[6-amino-5-(1,3-benzoxazol-2-yl)-3-pyridyl]-N-ethyl-benzenesulphonamide (0.007 mg); Mass Spectrum: M+H+ 395.13; RT 2.59 min.
Reaction SMILES: [C:1]([O:5][C:6]([NH:8][C:9]([CH3:17])([CH3:16])[CH2:10]/[CH:11]=[CH:12]/[C:13]([OH:15])=[O:14])=[O:7])([CH3:4])(C)C.FC(F)(F)C(O)=O.C(=O)([O-])ON1C(=O)CC(C[C:34]2[C:46]3C[C:44]4[C:39](=[CH:40][CH:41]=[CH:42][CH:43]=4)[C:38]=3[CH:37]=[CH:36][CH:35]=2)C1=O>ClCCl>[CH:43]1[C:44]2[CH:4]([CH2:1][O:5][C:6]([NH:8][C:9]([CH3:16])([CH3:17])[CH2:10]/[CH:11]=[CH:12]/[C:13]([OH:15])=[O:14])=[O:7])[C:46]3[C:38](=[CH:37][CH:36]=[CH:35][CH:34]=3)[C:39]=2[CH:40]=[CH:41][CH:42]=1
Reactant: O=C([O-])ON1C(=O)CC(Cc2cccc3c2Cc2ccccc2-3)C1=O
Reactant: CC(C)(C/C=C/C(=O)O)NC(=O)OC(C)(C)C
Solvent: ClCCl
Solvent: O=C(O)C(F)(F)F
Product: CC(C)(C/C=C/C(=O)O)NC(=O)OCC1c2ccccc2-c2ccccc21
Reaction time: 1 h
Yield: 36.5 %

Procedure:
To a solution of (2E)-5-(tert-butyloxycarbonylamino)-5-methylhex-2-enoic acid (0.5 g, 2.1 mmol) in dichloromethane (5 ml) was added trifluoroacetic acid (5 ml) and stirred for 60 min and concentrated in vacuo. Then a 10% aqueous solution of sodium carbonate (30 ml) and dioxane (30 ml) were added followed by 9H-fluorenylmethyl-succinimidyl carbonate (0.67 g, 2.1 mmol) and stirred overnight. The mixture was washed with petrol ether (2×20 ml) and the aqueous layer was acidified with 4N sulphoric acid (pH~3) and extracted with ethyl acetate (3×50 ml). The combined organic layers were washed with 1N sulfuric acid, water (4×20 ml), brine (20 ml), dried (Magnesiumsulfate) and concentrated in vacuo. The obtained product was precipitated from dichloromethane/ether and filtered to give 280 mg of (2E)-5-(((9H-flouren-9-yl)methoxy)carbonylamino)-5-methyl-hex-2-enoic acid, which was used without further purification.
Reaction SMILES: [NH2:1][C:2]1[CH:3]=[CH:4][N:5]([CH3:27])[C:6]2[C:7]=1[CH:8]=[N:9][C:10]1[N:19]([C:20]3[CH:25]=[CH:24][C:23]([Cl:26])=[CH:22][CH:21]=3)[CH2:18][CH:17]=[C:12]3[NH:13][C:14](=[O:16])[C:15]=2[C:11]=13.[CH2:28]([S:30](Cl)(=[O:32])=[O:31])[CH3:29].C(N(CC)CC)C>ClCCl>[Cl:26][C:23]1[CH:24]=[CH:25][C:20]([N:19]2[C:10]3=[C:11]4[C:15](=[C:6]5[N:5]([CH3:27])[CH:4]=[CH:3][C:2]([NH:1][S:30]([CH2:28][CH3:29])(=[O:32])=[O:31])=[C:7]5[CH:8]=[N:9]3)[C:14](=[O:16])[NH:13][C:12]4=[CH:17][CH2:18]2)=[CH:21][CH:22]=1
Reactant: CN1C=CC(N)=c2cnc3c4c([nH]c(=O)c-4c21)=CCN3c1ccc(Cl)cc1
Reactant: CCS(=O)(=O)Cl
Solvent: CCN(CC)CC
Solvent: ClCCl
Product: CCS(=O)(=O)NC1=c2cnc3c4c([nH]c(=O)c-4c2N(C)C=C1)=CCN3c1ccc(Cl)cc1
Temperature: 90 °C
Yield: 70.3 %

Procedure:
A mixture of Example 69e (0.04 g, 0.106 mmol), ethanesulfonyl chloride (0.054 g, 0.2423 mmol), and triethylamine (0.064 g, 0.635 mmol) in dichloromethane (3 mL) was stirred at ambient temperature for 2 hours. The solvent was removed, and the residue was treated with dioxane (3 mL) and 2.0 N NaOH (2 mL). The reaction mixture was heated at 90° C. for 2 hours. The solvents were partially removed, and the residue was partitioned between water and ethyl acetate. The aqueous layer was neutralized with 10% HCl and extracted with additional ethyl acetate twice. The combined organic layers were washed with saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate, filtered, and concentrated under reduced pressure. The residue was purified by reverse phase HPLC(C18, CH3CN/water (0.1% TFA), 0-100%) to afford 0.035 g (56.6%) of the title compound as the TFA salt. 1H NMR (500 MHz, DMSO-d6) δ 10.87 (d, J=5.8, 1H), 10.15 (s, 1H), 8.17 (d, J=2.75 Hz, 1H), 8.00 (d, J=2.75 Hz, 1H), 7.82 (s, 1H), 7.09 (d, J=5.8 Hz, 1H), 7.03-7.07 (m, 2H), 6.58-6.62 (m, 2H), 4.62 (s, 2H), 4.07 (s, 3H), 3.26 (q, J=7.32 Hz, 2H), 1.29 (t, J=7.32 Hz, 3H). MS (DCI+) m/z 470.1 (M+H)+.
Reaction SMILES: CC1C=CC(S(O[CH2:12][C@@H:13]2[O:18][C:17]3[CH:19]=[C:20]([S:23]([CH3:26])(=[O:25])=[O:24])[CH:21]=[CH:22][C:16]=3[O:15][CH2:14]2)(=O)=O)=CC=1.[CH3:27][NH2:28].Cl>C(#N)C>[CH3:27][NH:28][CH2:12][C@@H:13]1[O:18][C:17]2[CH:19]=[C:20]([S:23]([CH3:26])(=[O:25])=[O:24])[CH:21]=[CH:22][C:16]=2[O:15][CH2:14]1
Reactant: CN
Reactant: Cc1ccc(S(=O)(=O)OC[C@H]2COc3ccc(S(C)(=O)=O)cc3O2)cc1
Agent: Cl
Solvent: CC#N
Product: CNC[C@H]1COc2ccc(S(C)(=O)=O)cc2O1

Procedure:
Preparation according to Example 3 using [(2R)-7-(methylsulfonyl)-2,3-dihydro-1,4-benzodioxin-2-yl]methyl 4-methylbenzenesulfonate (0.4 g, 1 mmol), methanamine (33% in EtOH, 1 ml) and ACN (3 ml). Yield: 0.2 g, 89%. The amine was converted to the hydrochloric acid salt and crystallized from MeOH/Et2O. M.p. 248° C. MS m/z (rel. intensity, 70 eV) 257 (M+, bp), 79 (86), 70 (59), 63 (50), 51 (71). [α]=−59° (MeOH).