3-Bromomethyl-5-(5-chloro-thiophen-2-yl)-isoxazole → 3-[5-(5-Chloro-thiophen-2-yl)-isoxazol-3-ylmethyl]-2-(1-isopropyl-piperidin-4-ylcarbamoyl)-6-(2,2,2-trifluoro-ethoxy)-3H-thieno[3,4-d]imidazole-4-carboxylic acid methyl ester

Participants

Reaction Steps

3-[5-(5-Chloro-thiophen-2-yl)-isoxazol-3-ylmethyl]-2-(1-isopropyl-piperidin-4-ylcarbamoyl)-6-(2,2,2-trifluoro-ethoxy)-3H-thieno[3,4-d]imidazole-4-carboxylic acid methyl ester was prepared by a procedure according to example 81 starting from 68.0 mg (0.15 mmol) 2-(1-Isopropyl-piperidin-4-ylcarbamoyl)-6-(2,2,2-trifluoro-ethoxy)-3H-thieno[3,4-d]imidazole-4-carboxylic acid methyl ester and 42.2 mg (0.15 mmol) 3-bromomethyl-5-(5-chloro-thiophen-2-yl)-isoxazole. Purification by preparative RP-HPLC (CH3CN/H2O gradient+0.05% formic acid) gave the title compound as its formiate in form of a white amorphous solid. Structural assignment was achieved by NOE-spectroscopy.

Provenance & Evidence