Process for the preparation of a thiazoline-azetidinone

Details Process for the preparation of a thiazoline-azetidinone Process for the preparation of a thiazoline-azetidinone

1996-06-06

1998-02-24

McKane, Joseph K.

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

Organic compounds

Unsubstituted hydrocarbyl chain between the ring and the -c-...

C07D20512

Patent

active

057213607

ABSTRACT:
The present invention refers to process for the preparation of a tiazoline-azetidinone of formula I ##STR1## which comprises N-protecting in position 1 of (3S,4S)-3-phenylace tamido-4-acetoxy-azetidin-2-one, converting the product thus obtained into the corresponding thioamide and subsequently ciclyzing and deprotecting.

REFERENCES:
Journal American Chemical Society 92 (8), pp. 2575-2586 (1970), Cooper, R.D.G., et al, "Structural studies on penicillin derivatives".
Chemical Abstracts 87 (9), No. 68339u (1977) Tanida, H., et al, "Ring fission and cyclization of thiopenicillin oxides", p. 2552.

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