Ethyl Acetate → HCID 89442483, compound

HRID 2284053Notes

Reaction equation

[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([C:14]2[N:15]([CH2:20][CH2:21][OH:22])[CH:16]=[C:17](Br)[N:18]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[F:23][C:24]1[CH:29]=[CH:28][C:27](B2OC(C)(C)C(C)(C)O2)=[CH:26][C:25]=1[C:39](F)(F)F.C([O-])([O-])=O.[Cs+].[Cs+].CC(=O)OCC>O1CCOCC1.O>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([C:14]2[N:15]([CH2:20][CH2:21][OH:22])[CH:16]=[C:17]([C:27]3[CH:28]=[CH:29][C:24]([F:23])=[C:25]([CH3:39])[CH:26]=3)[N:18]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Participants

Conditions

Temperature: 50 °C

Procedure

A mixture of 4-[4-Bromo-1-(2-hydroxy-ethyl)-1H-imidazol-2-yl]-piperidine-1-carboxylic acid tert-butyl ester (2000.00 mg; 5.34 mmol; 1.00 eq.), 2-(4-fluoro-3-trifluoromethyl-phenyl)-4,4,5,5-tetramethyl-[1,3,2]dioxaborolane (1233.97 mg; 8.02 mmol; 1.50 eq.), mg; 0.53 mmol; 0.10 eq.) and Cs2CO3 (3483 mg, 10.69 mmol) in dioxane 15 ml and water 1.5 ml was purged with argon, added Pd(0)(tBu3)2 (273 mg, 0.53 mmol), stirred at 50° C. for overnight. LC-MS showed desired as major product. Diluted reaction solution with EA 70 ml, washed with brine 30mIX2, separated out organic layer, dried, removed off solvent, got crude product, which was subjected to biotage NASP column (100 g), elated with 40-100% EA in hexane and contained 0.5% TEA in EA, collected title compound 1650 mg, 76%

Workup

additionDiluted
washwashed with brine 30mIX2
customseparated out organic layer
customdried
customremoved off solvent
customcollected title compound 1650 mg, 76%

Sources & evidence

ORD record: ord-72ccef9dcbce4ecdb21cbe734bbcc118
Source dataset: uspto-grants-2015_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09145392B2

Reaction notes

Loading…