Method of resolving cis 3-amino-4-[2-(2-furyl)eth-1-yl]-1-methoxycarbonylmethyl-azetidin-2-one
US4923983A · kind A · utility
2Cited by
1References
1Claims
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Key dates
| Filing date | Jul 31, 1989 |
| Grant date | May 8, 1990 |
| Priority date | — |
| Expiry date | Jul 31, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P31/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Cis .alpha..alpha./.beta..beta.-3-amino-[2-(2-furyl)eth-1-yl]-1-methoxycarbony lmethyl-azetidin-2-one is resolved via optically active tartaric acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.