Process for production of piperidine derivatives
US6452011B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2000 |
| Grant date | Sep 17, 2002 |
| Priority date | — |
| Expiry date | Aug 9, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D261/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a method for preparing piperidine derivative compounds by converting, with a piperidine compound, regioisomers having the formula: where Z is or and where m is 1 or 4-6; Q and Y are the same or different and are selected from the group consisting of O, S, and NR5; R6 and R7 are the same or different and are selected from the group consisting of hydrogen, an alkyl moiety, an aryl moiety, OR8, SR8, and NR8R9; X3 is halogen, OR15, SR15, NR15R16, OSO2R15, or NHSO2R15; R5, R8, R9, R15, and R16 are the same or different and are selected from the group consisting of hydrogen, an alkyl moiety, and an aryl moiety; and A is a substituent of its ring and is selected from the group consisting of hydrogen, halogens, alkyl, hydroxy, alkoxy, and other substituents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.