Ethyl 3-((3R,4R)-4-methyl-3-(methyl(7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino)piperidin-1-yl)-3-oxopropanoate

3-((3R,4R)-4-甲基-3-(甲基(7H-吡咯并[2,3-d]嘧啶-4-基)氨基)哌啶-1-基)-3-氧代丙酸乙酯

Also known as: 1-Piperidinepropanoic acid, 4-methyl-3-(methyl-7H-pyrrolo[2,3-d]pyrimidin-4-ylamino)-β-oxo-, ethyl ester, (3R,4R)-, 2-Descyano-2-ethyl Formyl-tofacitinib, 3-{4-Methyl-3-[methyl-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-amino]-piperidin-1-yl}-3-oxo-propionic acid ethyl ester, Ethyl 3-[(3R,4R)-4-methyl-3-[methyl(7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino]piperidin-1-yl]-3-oxopropanoate, Ethyl 3-{(3R,4R)-4-methyl-3-[methyl(7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino]-1-piperidinyl}-3-oxopropanoate, MFCD30537230, Tofacitinib impurity 23, Tofacitinib-29, Tofacitinib Impurity 84, Tofacitinib Impurity 90

Ethyl 3-((3R,4R)-4-methyl-3-(methyl(7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino)piperidin-1-yl)-3-oxopropanoate (CAS 1675248-18-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C18H25N5O3 and a molecular weight of 359.423 g/mol. It is also known as 1-Piperidinepropanoic acid, 4-methyl-3-(methyl-7H-pyrrolo[2,3-d]pyrimidin-4-ylamino)-β-oxo-, ethyl ester, (3R,4R)-, 2-Descyano-2-ethyl Formyl-tofacitinib and 3-{4-Methyl-3-[methyl-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-amino]-piperidin-1-yl}-3-oxo-propionic acid ethyl ester. Key property: a density of 1.3±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

1675248-18-6

Jingsj CID

J-1895952-9

Molecular Formula

C₁₈H₂₅N₅O₃

Chinese Name

3-((3R,4R)-4-甲基-3-(甲基(7H-吡咯并[2,3-d]嘧啶-4-基)氨基)哌啶-1-基)-3-氧代丙酸乙酯

Molecular Weight

359.423 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026