Ammonia → 5-[6-({[tert-butyl(dimethyl)silyl]oxy}methyl)-3H-imidazo[4,5-c]pyridin-3-yl]-3-{(1R)-1-[2-(trifluoromethyl)phenyl]ethoxy}thiophene-2-carboxamide

HRID 2391667Notes

Reaction equation

[Si:1]([O:8][CH2:9][C:10]1[N:15]=[CH:14][C:13]2[N:16]([C:19]3[S:23][C:22]([C:24]([O:26]C)=O)=[C:21]([O:28][C@@H:29]([C:31]4[CH:36]=[CH:35][CH:34]=[CH:33][C:32]=4[C:37]([F:40])([F:39])[F:38])[CH3:30])[CH:20]=3)[CH:17]=[N:18][C:12]=2[CH:11]=1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].[NH3:41]>CO>[Si:1]([O:8][CH2:9][C:10]1[N:15]=[CH:14][C:13]2[N:16]([C:19]3[S:23][C:22]([C:24]([NH2:41])=[O:26])=[C:21]([O:28][C@@H:29]([C:31]4[CH:36]=[CH:35][CH:34]=[CH:33][C:32]=4[C:37]([F:40])([F:39])[F:38])[CH3:30])[CH:20]=3)[CH:17]=[N:18][C:12]=2[CH:11]=1)([C:4]([CH3:7])([CH3:5])[CH3:6])([CH3:3])[CH3:2]

Participants

Conditions

Temperature: 125 °C

Procedure

A mixture of 12 g of methyl 5-[6-({[tert-butyl(dimethyl)silyl]oxy}methyl)-3H-imidazo[4,5-c]pyridin-3-yl]-3-{(1R)-1-[2-(trifluoromethyl)phenyl]ethoxy}thiophene-2-carboxylate and 1.3 l of a 7 N solution of ammonia in methanol is stirred in an autoclave at 125° C. for 4 hours. The reaction mixture is concentrated to dryness and the resulting residue is purified by flash chromatography [silica gel, eluent: toluol/dioxane, elution gradient of 7/3 (v/v) to 1/1 (v/v)] to yield the title product.

Workup

concentrationThe reaction mixture is concentrated to dryness
customthe resulting residue is purified by flash chromatography [silica gel, eluent: toluol/dioxane, elution gradient of 7/3 (v/v) to 1/1 (v/v)]

Sources & evidence

ORD record: ord-a6ef88fa197c405e88e8817ac3584525
Source dataset: uspto-grants-2012_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08273890B2

Reaction notes

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