Patent · US Expired

N-hydroxy protecting groups and process for the preparation of 3-acylamino-1-hydroxy-2-azetidinones

US4633017A · kind A · utility

25Cited by

1References

2Claims

0Family size

Assignee

E.R. SQUIBB & SONS. INC. · US

Inventors

Richard H. Mueller · Marl, DE
Jakob-Matthias Drossard · Regensburg, DE
Peter H. Ermann · Donaustauf, DE

Key dates

Filing date	Oct 24, 1985
Grant date	Dec 30, 1986
Priority date	—
Expiry date	Oct 24, 2005

Classification

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

Abstract

Processes for preparing the useful intermediates having the formula ##STR1## are disclosed herein, utilizing novel chemical compounds having the formula ##STR2##

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