Process for the production of isoindoline derivatives, novel intermediates and process for their production
US4958029A · kind A · utility
9Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 1988 |
| Grant date | Sep 18, 1990 |
| Priority date | — |
| Expiry date | Jan 5, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for producing a compound of the formula: ##STR1## wherein R.sup.1 is a hydrogen atom, a lower alkyl group or an aralkyl group, and R.sup.2 is a hydrogen atom or a hydroxyl-protecting group, or a salt thereof, which comprises removing from a compound of the formula: ##STR2## wherein R.sup.3 is a hydrogen atom or a hydroxyl-protecting group, R.sup.4 and R.sup.5 which may be the same or different are N-protecting groups selected from the group consisting of lower alkyl groups and aralkyl groups, and X.sup..crclbar. is an anion, the N-protecting group(s), if necessary, together with the hydroxyl-protecting group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.