Ethyl 2-((5-(4-(tert-butoxycarbonyl)piperazin-1-yl)pyridin-2-yl)amino)-8-cyclopentyl-5-methyl-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidine-6-carboxylate

2-((5-(4-(叔丁氧基羰基)哌嗪-1-基)吡啶-2-基)氨基)-8-环戊基-5-甲基-7-氧代-7,8-二氢吡啶并[2,3-d]嘧啶-6-羧酸乙酯

Also known as: Palbociclib Impurity 119, Ethyl 2-((5-(4-(tert-butoxycarbonyl)piperazin-1-yl)pyridin-2-yl)amino)-8-cyclopentyl-5-methyl-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidine-6-carboxylate, Pyrido[2,3-d]pyrimidine-6-carboxylic acid, 8-cyclopentyl-2-[[5-[4-[(1,1-dimethylethoxy)carbonyl]-1-piperazinyl]-2-pyridinyl]amino]-7,8-dihydro-5-methyl-7-oxo-, ethyl ester, 8-cyclopentyl-5-methyl-2-[[5-[4-[(2-methylpropan-2-yl)oxycarbonyl]piperazin-1-yl]pyridin-2-yl]amino]-7-oxopyrido[2,3-d]pyrimidine-6-carboxylate

Ethyl 2-((5-(4-(tert-butoxycarbonyl)piperazin-1-yl)pyridin-2-yl)amino)-8-cyclopentyl-5-methyl-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidine-6-carboxylate (CAS 571189-03-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C30H39N7O5 and a molecular weight of 577.67500 g/mol. It is also known as Palbociclib Impurity 119, Pyrido[2,3-d]pyrimidine-6-carboxylic acid, 8-cyclopentyl-2-[[5-[4-[(1,1-dimethylethoxy)carbonyl]-1-piperazinyl]-2-pyridinyl]amino]-7,8-dihydro-5-methyl-7-oxo-, ethyl ester and 8-cyclopentyl-5-methyl-2-[[5-[4-[(2-methylpropan-2-yl)oxycarbonyl]piperazin-1-yl]pyridin-2-yl]amino]-7-oxopyrido[2,3-d]pyrimidine-6-carboxylate. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

571189-03-2

Jingsj CID

J-1496484-6

Molecular Formula

C₃₀H₃₉N₇O₅

Chinese Name

2-((5-(4-(叔丁氧基羰基)哌嗪-1-基)吡啶-2-基)氨基)-8-环戊基-5-甲基-7-氧代-7,8-二氢吡啶并[2,3-d]嘧啶-6-羧酸乙酯

Molecular Weight

577.67500 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026