Process for preparing camptothecin
US6218540A · kind A · utility
1Cited by
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1Claims
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Assignee
Inventors
Key dates
| Filing date | May 4, 1999 |
| Grant date | Apr 17, 2001 |
| Priority date | — |
| Expiry date | May 4, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12P13/08
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A process for preparing the anti-cancer drug camptothecin (CPT) and certain derivatives thereof. The process includes the reacting of three base reagents and a five-step process for synthesizing optically pure CPT in high overall yield from inexpensive starting materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.