Preparation of 3-bromocephalosporins from thiazoline azetidinone

Details Preparation of 3-bromocephalosporins from thiazoline azetidinone Preparation of 3-bromocephalosporins from thiazoline azetidinone

1982-12-17

1984-08-28

Rizzo, Nicholas S.

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

Organic compounds

Chalcogen in the nitrogen containing substituent

544 16, 544 22, 544 28, 544 30, 544 26, C07D50104

Patent

active

044685149

ABSTRACT:
Thiazoline azetidinones are converted in good yield to 3-bromo-3-methylcephams by treatment with a bromine source and dimethyl sulfoxide.

REFERENCES:
patent: 3932398 (1976-01-01), Nudelman et al.
patent: 4018776 (1977-04-01), Foglio et al.
patent: 4091026 (1978-05-01), Micetich et al.
patent: 4183855 (1980-01-01), Yoshioka et al.
Micetich et al., Tetra Letters, 979-982, 1976.

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