Hydrochloric Acid → 8-Cyclopentyl-6-(2-methoxy-ethoxymethyl)-2-(5-piperazin-1-yl-pyridin-2-ylamino)-8h-pyrido[2,3-d]pyrimidin-7-one hydrochloride salt

Participants

Reaction Steps

4-{6-[8-Cyclopentyl-6-(2-methoxy-ethoxymethyl)-7-oxo-7,8-dihydro-pyrido[2,3-d]pyrimidin-2-ylamino]-pyridin-3-yl}-piperazine-1-carboxylic acid tert-butyl ester (0.140 g, 0.242 mmol) was dissolved in dichloromethane (2 mL). 2 N HCl in diethyl ether (2 mL) was added and the reaction mixture was stirred at room temperature for 18 hours. The solvent was evaporated to give 8-cyclopentyl-6-(2-methoxy-ethoxymethyl)-2-(5-piperazin-1-yl-pyridin-2-ylamino)-8H-pyrido[2,3-d]pyrimidin-7-one hydrochloride salt as a yellow solid (0.116 g, 85.9%). MS (APCl); M++1: Calc'd, 480.3, Found 480.2. Anal. Calc'd for C25H33N7O22.16HCl: C, 53.78; H, 6.35; N, 17.56. Found; C, 54.03; H, 6.64; N, 17.17.

Provenance & Evidence