Certain pyrano (3,4-f)-indolizine derivatives
US4778891A · kind A · utility
24Cited by
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3Claims
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Key dates
| Filing date | Oct 16, 1986 |
| Grant date | Oct 18, 1988 |
| Priority date | — |
| Expiry date | Oct 16, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D493/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A pyranoindolizine derivative represented by the following general formula (I): ##STR1## wherein R means a hydrogen atom or hydroxyl group and Q denotes >C.dbd.O or ##STR2## with a proviso that Q is other than >C.dbd.O when R is a hydrogen atom. Its preparation process is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.