Anti-spasmodic agents having a heterocyclic ring
USRE33907E · kind E · reissue
Assignee
Inventor
Key dates
| Filing date | Aug 15, 1989 |
| Grant date | Apr 28, 1992 |
| Priority date | — |
| Expiry date | Aug 15, 2009 |
Classification
- Technology area (CPC —)General
Abstract
A new class of anti-spasmodic thioester compounds having a heterocyclic ring containing the nitrogen atom of a secondary or tertiary amine or a bicycloheterocyclic ring system containing the nitrogen atom of a secondary or tertiary amine. These compounds have the general formula I ##STR1## wherein: =n is an integer from 0 to 2; PA0 R.sub.1 is aryl or cycloalkyl; PA0 =R.sub.2 is hydrogen or hydroxyl; and PA0 R.sub.3 is selected from the group consisting of heterocyclic containing the nitrogen atom of a secondary or tertiary amine to which an alkyl group having from 0 to 3 carbon atoms is bonded and no other hetero atoms are present in the ring structure; heterocyclic containing the nitrogen atom of a secondary or tertiary amine to which an alkyl group having from 0 to 3 carbon atoms is bonded and one or more hetero atoms selected from the group consisting of N, O and S are present in the ring structure; bicycloheterocyclic ring system containing the nitrogen atom of a secondary or tertiary amine to which an alkyl group having from 0 to 3 carbon atoms is bonded and no other hetero atoms are present in the ring system; and bicycloheterocyclic ring system containing the nitrogen atom o…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.