tert-Butyl 2,7-diazaspiro[3.5]nonane-7-carboxylate → 2-Chloro-6-(2,7-diaza-spiro[3.5]non-2-ylmethyl)-4-morpholin-4-yl-thieno[3,2-d]pyrimidine

Participants

Reaction Steps

2-(2-Chloro-4-morpholin-4-yl-thieno[3,2-d]pyrimidin-6-ylmethyl)-2,7-diaza-spiro[3.5]nonane-7-carboxylic acid tert-butyl ester was prepared according to the method used in the preparation of 2-chloro-6-(7-methyl-2,7-diaza-spiro[3.5]non-2-ylmethyl)-4-morpholin-4-yl-thieno[3,2-d]pyrimidine using 2,7-diaza-spiro[3.5]-nonane-7-carboxylic acid tert-butyl ester in place of 7-methyl-2,7-diaza-spiro[3.5]nonane. 2-(2-chloro-4-morpholin-4-yl-thieno[3,2-d]pyrimidin-6-ylmethyl)-2,7-diaza-spiro[3.5]nonane-7-carboxylic acid tert-butyl ester was subsequently BOC-deprotected to give the title compound as a pale yellow oil (287 mg, 58%).

Provenance & Evidence