N-(2-Aminoethyl)piperidine → 8-Cyclohexyl-5-oxo-2-(2-piperidin-1-yl-ethylamino)-5,8-dihydro-pyrido[2,3-d]pyrimidine-6-carboxylic acid ethyl ester

Participants

Reaction Steps

Using the procedure outlined in Example 28 Step F, the title compound was prepared from 2-piperidin-1-yl-ethylamine and 8-cyclohexyl-2-methanesulfonyl-5-oxo-5,8-dihydro-pyrido[2,3-d]pyrimidine-6-carboxylic acid ethyl ester (25 mg, 0.06 mmol). 8-Cyclohexyl-5-oxo-2-(2-piperidin-1-yl-ethylamino)-5,8-dihydro-pyrido[2,3-d]pyrimidine-6-carboxylic acid ethyl ester was obtained as a white solid (20 mg, 80%). Mass Spectrum (LCMS, ESI pos.) Calcd. For C23H33N5O3: 428.26 (M+H). Found: 428.3.

Provenance & Evidence