Process for certain (2R-trans)hexahydroaroquinolizines
US4942235A · kind A · utility
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4Claims
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Key dates
| Filing date | Mar 16, 1989 |
| Grant date | Jul 17, 1990 |
| Priority date | — |
| Expiry date | Mar 16, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D495/22
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A unique process for preparing certain (2R-trans)hexahydroaroquinolizines, especially (2R-trans)-N-[2-(1,3,4,6,7,12b-hexahydro-2'-oxospiro[aro-[2,3-a]-quinolizi ne-2,4'-imidazolidin]-3'-yl)ethyl)-methanesulfonamide from (2R-trans)-N-[2-[(2-cyano-(1,3,4,6,7,12b-hexahydro-aro-[2,3-a]quinolizin-2 -yl)amino]ethyl]methanesulfonamide is described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.