Compounds, process and intermediates
US5110958A · kind A · utility
1Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 1991 |
| Grant date | May 5, 1992 |
| Priority date | — |
| Expiry date | May 6, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/1804
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The claimed invention relates to intermediate compounds of the formula ##STR1## wherein R is hydrogen or methyl, R.sub.1 and R.sub.2 each, independently, is hydrogen, lower alkyl or aryl, or taken together are lower alkylene of from 3 to 6 carbon atoms, and the dotted (. . . ) line is an optional bond.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.