Synthesis of optically active calanolides A and B and enantiomers and related compounds
US5608085A · kind A · utility
3Cited by
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21Claims
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Key dates
| Filing date | Feb 27, 1995 |
| Grant date | Mar 4, 1997 |
| Priority date | — |
| Expiry date | Feb 27, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D493/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method of synthesis of the four optically active stereoisomers of calanolide A and B which produces the compounds in high yields and in a high degree of purity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.