Sodium Hydroxide → 1-{4'-[1-methyl-5-((R)-1-phenyl-ethoxycarbonylamino)-1H-[1,2,3]triazol-4-yl]-biphenyl-4-yl}-cyclopropanecarboxylic acid

HRID 631912Notes

Reaction equation

HRID 631912 reaction equation
C[O:2][C:3]([C:5]1([C:8]2[CH:13]=[CH:12][C:11]([C:14]3[CH:19]=[CH:18][C:17]([C:20]4[N:21]=[N:22][N:23]([CH3:37])[C:24]=4[NH:25][C:26]([O:28][C@@H:29]([C:31]4[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=4)[CH3:30])=[O:27])=[CH:16][CH:15]=3)=[CH:10][CH:9]=2)[CH2:7][CH2:6]1)=[O:4].[OH-].[Na+]>C1COCC1.C(O)C>[CH3:37][N:23]1[C:24]([NH:25][C:26]([O:28][C@@H:29]([C:31]2[CH:32]=[CH:33][CH:34]=[CH:35][CH:36]=2)[CH3:30])=[O:27])=[C:20]([C:17]2[CH:18]=[CH:19][C:14]([C:11]3[CH:10]=[CH:9][C:8]([C:5]4([C:3]([OH:4])=[O:2])[CH2:7][CH2:6]4)=[CH:13][CH:12]=3)=[CH:15][CH:16]=2)[N:21]=[N:22]1

Participants

5

Reactant 2

HCID 14798Sodium HydroxideHCID 71266459HCID 71266459, compound

Product 1

HCID 708562661-{4'-[1-methyl-5-((R)-1-phenyl-ethoxycarbonylamino)-1H-[1,2,3]triazol-4-yl]-biphenyl-4-yl}-cyclopropanecarboxylic acidYield 97.8%

Reagents, catalysts & solvents 2

HCID 702EthanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

[5-(4-Bromo-phenyl)-3-methyl-3H-[1,2,3]triazol-4-yl]-carbamic acid (R)-1-phenyl-ethyl ester (from Example 1, 566 mg, 1.41 mmol), methyl 1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)cyclopropanecarboxylate (511 mg, 1.69 mmol), X-Phos (134 mg, 0.28 mmol), palladium acetate (31.7 mg, 0.14 mmol) and potassium phosphate (898 mg, 4.23 mmol) were combined in toluene (12 mL) and degassed water (3 mL) was added. The mixture was degassed and sealed. The mixture was stirred at 95° C. for 3 hrs and cooled to room temperature. The mixture was extracted with ethyl acetate and water. The organic layer was washed with brine and dried. Solvents were evaporated and the residue was purified by flash column chromatography (40 g silica gel, ethyl acetate in hexanes 10% to 70% in 15 minutes) to give 1-{4′-[1-methyl-5-((R)-1-phenyl-ethoxycarbonylamino)-1H-[1,2,3]triazol-4-yl]-biphenyl-4-yl}-cyclopropanecarboxylic acid methyl ester as a pale yellow solid (370 mg, 52.8% yield). LC/MS calcd for C29H28N4O4 (m/e) 496.0, obsd 497.0 (M+H); 1H-NMR (400 MHz, CDCl3) δ ppm 1.25 (m, 3H), 1.66 (m, 4H), 3.67 (s, 3H), 3.93 (s, 3H), 5.91 (m, 1H), 6.44 (br, 1H), 7.29-7.40 (m, 5H), 7.44 (d, J=8.1 Hz, 2H), 7.57 (d, J=8.3 Hz, 2H), 7.61 (d, J=8.3 Hz, 2H), 7.78 (br d, J=6.6 Hz, 2H). 1-{4′-[1-Methyl-5-((R)-1-phenyl-ethoxycarbonylamino)-1H-[1,2,3]triazol-4-yl]-biphenyl-4-yl}-cyclopropanecarboxylic acid methyl ester (50 mg) was dissolved in 1 mL of THF and 1 mL of ethanol. To this mixture was added 1N sodium hydroxide solution (1 mL). The clear solution was stirred at room temperature for 12 hrs. Solvents were evaporated and the residue was treated with 2N hydrochloric acid (1.4 mL). The solid was filtered and rinsed with water, dried in the air, to give 1-{4′-[1-methyl-5-((R)-1-phenyl-ethoxycarbonylamino)-1H-[1,2,3]triazol-4-yl]-biphenyl-4-yl}-cyclopropanecarboxylic acid (47.5 mg, 97.8% yield). LC/MS calcd for C28H26N4O4 (m/e) 482.0, obsd 483.0 (M+H); 1H-NMR (400 MHz, DMSO-d6) δ ppm 1.14-1.24 (m, 3H), 1.49 (m, 2H), 1.59 (m, 2H), 3.86 (s, 3H), 5.80 (m, 1H), 7.28-7.50 (m, 7H), 7.63 (d, J=8.1 Hz, 2H), 7.71 (m, 2H), 7.80 (d, J=7.6 Hz, 2H), 9.95 and 9.62 (br s, 1H), 12.35 (s, 1H).

Workup

  1. customSolvents were evaporated
  2. additionthe residue was treated with 2N hydrochloric acid (1.4 mL)
  3. filtrationThe solid was filtered
  4. washrinsed with water
  5. customdried in the air

Sources & evidence

ORD record
ord-c2d2b0eb3e9445e5b337a03bfbb84336
Source dataset
uspto-grants-2016_04
Patent number
US09321738B2

Reaction notes

Loading…