Triethylamine → 2-Cyclohexyl-2-[5-fluoro-2-((R)-methoxy-phenyl-methyl)-benzoimidazol-1-yl]-N-(4-hydroxy-cyclohexyl)-acetamide

HRID 1678814Notes

Reaction equation

[CH:1]1([CH:7]([N:11]2[C:15]3[CH:16]=[CH:17][C:18]([F:20])=[CH:19][C:14]=3[N:13]=[C:12]2[C@H:21]([O:28][CH3:29])[C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)[C:8](O)=[O:9])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.C(N(CC)CC)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.Cl.[NH2:62][C@H:63]1[CH2:68][CH2:67][C@H:66]([OH:69])[CH2:65][CH2:64]1>CN(C=O)C>[CH:1]1([CH:7]([N:11]2[C:15]3[CH:16]=[CH:17][C:18]([F:20])=[CH:19][C:14]=3[N:13]=[C:12]2[C@H:21]([O:28][CH3:29])[C:22]2[CH:23]=[CH:24][CH:25]=[CH:26][CH:27]=2)[C:8]([NH:62][CH:63]2[CH2:68][CH2:67][CH:66]([OH:69])[CH2:65][CH2:64]2)=[O:9])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6]1

Participants

Conditions

Temperature: 40 °C

Procedure

To a solution of cyclohexyl-[5-fluoro-2-((R)-methoxy-phenyl-methyl)-benzoimidazol-1-yl]-acetic acid (100 mg, 0.25 mmol, 1.0 equiv) in DMF (1.5 mL) was added triethylamine (51.1 mg, 70.0 μL, 0.50 mmol, 2.0 equiv) and HATU (124.7 mg, 0.33 mmol, 1.3 equiv) and the mixture stirred at 40° C. After 15 min, trans-4-amino-cyclohexanol hydrochloride (50.03 mg, 0.33 mmol, 1.3 equiv; [CAS RN 50910-54-8]) was added and stirring continued at 50° C. for 2 h. Removal of the solvent mixture under reduced pressure and purification by preparative HPLC on reversed phase eluting with a gradient of acetonitrile/water provided 50 mg (40%) of the title compound. MS (ISP): 494.5 [M+H]+.

Workup

stirringstirring
waitcontinued at 50° C. for 2 h
customRemoval of the solvent mixture
customunder reduced pressure and purification by preparative HPLC on reversed phase
washeluting with a gradient of acetonitrile/water

Sources & evidence

ORD record: ord-a7fc099859d84ff18045c6e9b9f0c3f4
Source dataset: uspto-grants-2011_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08008503B2

Reaction notes

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