3-[2-[4-(2,4-difluorobenzoyl)piperidin-1-yl]ethyl]-2-methyl-6,7,8,9-tetrahydropyrido[1,2-a]pyrimidin-4-one

3-[2-[4-(2,4-二氟苯甲酰基)哌啶-1-基]乙基]-2-甲基-6,7,8,9-四氢-4H-吡啶并[1,2-a]嘧啶-4-酮

Also known as: Risperidone intermediate, 3-[2-[4-(2,4-Difluorobenzoyl)-1-piperidinyl]ethyl]-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one, 3-{2-[4-(2,4-Difluorobenzoyl)-1-piperidinyl]ethyl}-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one

3-[2-[4-(2,4-difluorobenzoyl)piperidin-1-yl]ethyl]-2-methyl-6,7,8,9-tetrahydropyrido[1,2-a]pyrimidin-4-one (CAS 158697-67-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C23H27F2N3O2 and a molecular weight of 415.476 g/mol. It is also known as Risperidone intermediate, 3-[2-[4-(2,4-Difluorobenzoyl)-1-piperidinyl]ethyl]-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one and 3-{2-[4-(2,4-Difluorobenzoyl)-1-piperidinyl]ethyl}-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one. Key properties include a boiling point of 543.6±60.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 282.6±32.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

158697-67-7

Jingsj CID

J-1185955-4

Molecular Formula

C₂₃H₂₇F₂N₃O₂

Chinese Name

3-[2-[4-(2,4-二氟苯甲酰基)哌啶-1-基]乙基]-2-甲基-6,7,8,9-四氢-4H-吡啶并[1,2-a]嘧啶-4-酮

Molecular Weight

415.476 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026