Process for epimerizing beta-lactam antibiotic compounds by mean

Details Process for epimerizing beta-lactam antibiotic compounds by mean Process for epimerizing beta-lactam antibiotic compounds by mean

1975-12-24

1977-09-27

Rizzo, Nicholas S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Chalcogen in the nitrogen containing substituent

260244R, 2602564F, 260295F, 260307A, 544 19, C07D50104

Patent

active

040511324

ABSTRACT:
Total synthesis methods employ 7-amino (6-amino in the case of a penicillin derivative) group in the alpha configuration. The instant invention provides a general route for preparing the 7.beta.-amino (or 6.beta.-amino) compound, through the formation of an imino-containing intermediate, followed by hydrolysis to the desired epimer. Novel intermediate products are provided. The compounds having the desired beta epimer can be converted to acylamino-antibiotics.

REFERENCES:
patent: 3719667 (1973-03-01), Gutowski

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