摘要:
The present invention relates to a process for preparing paliperidone from its intermediate 3-(2-chloroethyl)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrrido[1,2-a]-pyrimidin-4-one.
摘要:
The present invention relates to a process for preparing paliperidone from its intermediate 3-(2-chloroethyl)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrrido[1,2-a]-pyrimidin-4-one.
摘要:
The present invention provides 3-benzyloxy-2-aminopyridine (BOPA), 3-(2-Hydroxyethyl)-2-methyl-9-hydoxy-4H-pyrido[1,2-a]pyrimidine-4-one (HMBP), 3-(2-Chloroethyl)-2-methyl-9-hydoxy-4H-pyrido[1,2-a]pyrimidine-4-one (CMHP) and 3-(2-chloroethyl)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrrido[1,2-a]-pyrimidin-4-one (CMHTP) useful as intermediates for the preparation of paliperidone. The present invention also provides processes for preparing these intermediates and for preparing paliperidone.
摘要:
The present invention provides processes of preparing 3-(2-chloroethyl)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrrido[1,2-a]-pyrimidin-4-one (CMHTP) useful as intermediates for the preparation of paliperidone, wherein the processes use 3-(2-chloroethyl)-2-methyl-9-benzyloxy-4H-pyrido[1,2-a]pyrimidine-4-one (CMBP) and/or 3-(2-chloroethyl)-2-methyl-9-hydroxy-4H-pyrido[1,2-a]pyrimidine-4-one (CMHP) having phosphorus at least partially removed as the intermediate.
摘要:
The present invention provides 3-benzyloxy-2-aminopyridine (BOPA), 3-(2-Hydroxyethyl)-2-methyl-9-hydoxy-4H-pyrido[1,2-a]pyrimidine-4-one (HMBP), 3-(2-Chloroethyl)-2-methyl-9-hydoxy-4H-pyrido[1,2-a]pyrimidine-4-one (CMHP) and 3-(2-chloroethyl)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrrido[1,2-a]- pyrimidin-4-one (CMHTP) useful as intermediates for the preparation of paliperidone. The present invention also provides processes for preparing these intermediates and for preparing paliperidone.