Patent · US Expired

Trans-3-carboxymethylene-4-carboxy-5-methyl-delta2-isoxazoline as intermediate

US4499278A · kind A · utility

3Cited by
2References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 22, 1982
Grant dateFeb 12, 1985
Priority date
Expiry dateNov 22, 2002

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02P20/55
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Disclosed is a process for the stereocontrolled total synthesis of thienamycin, which synthesis proceeds via intermediate II: ##STR1## wherein R.sup.5 and R.sup.6 are removable protecting groups.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.