Methanol → HCID 22315313、化合物

反応式

CO[C:3](=[O:25])[CH:4]([C:11]1[CH:16]=[CH:15][C:14]([S:17]([CH3:20])(=[O:19])=[O:18])=[C:13]([C:21]([F:24])([F:23])[F:22])[CH:12]=1)[CH2:5][CH:6]1[CH2:10][CH2:9][CH2:8][CH2:7]1.[NH2:26][C:27]1[S:28][CH:29]=[CH:30][N:31]=1.C[O-].[Mg+2].C[O-].CO>>[CH:6]1([CH2:5][CH:4]([C:11]2[CH:16]=[CH:15][C:14]([S:17]([CH3:20])(=[O:19])=[O:18])=[C:13]([C:21]([F:22])([F:24])[F:23])[CH:12]=2)[C:3]([NH:26][C:27]2[S:28][CH:29]=[CH:30][N:31]=2)=[O:25])[CH2:7][CH2:8][CH2:9][CH2:10]1

参加物

反応物 4

HCID 887Methanol

HCID 21552-Aminothiazole

HCID 164537Methanol, magnesium salt (2:1)

HCID 120695033-Cyclopentyl-2-(4-methanesulfonyl-3-trifluoromethyl-phenyl)-propionic acid methyl ester

生成物 1

HCID 22315313HCID 22315313、化合物収率 55.3%

実験手順

A solution of 3-cyclopentyl-2-(4-methanesulfonyl-3-trifluoromethyl-phenyl)-propionic acid methyl ester (395 mg, 1.04 mmol) and 2-aminothiazole (209 mg, 1.38 mmol) in a solution of magnesium methoxide in methanol (7.4 wt %, 2.09 mL, 1.38 mmol) was heated at 110° C. for 24 h. The reaction mixture was then concentrated in vacuo. Flash chromatography (Merck Silica gel 60, 230–400 mesh, 50/50 hexanes/ethyl acetate) afforded the 3-cyclopentyl-2-(4-methanesulfonyl-3-trifluoromethyl-phenyl)-N-thiazol-2-yl-propionamide (256.7 mg, 55.1%) as a white solid: mp 95–100° C.; EI-HRMS m/e calcd for C19H21F3N2O3S2 (M+) 446.0946, found 446.0944.