Process for preparing azetidinones

Details Process for preparing azetidinones Process for preparing azetidinones

1988-01-19

1990-07-10

Rizzo, Nicholas S.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

540310, 540350, 549512, C07D30304, C07D20502

Patent

active

049407880

ABSTRACT:
A process for preparing azetidinones of the formula: ##STR1## wherein R.sup.1 is an amino-protecting group and R.sup.2 is alkyl or aryl, which comprises reacting compounds of the formulae (VIII) and (IX) ##STR2## wherein L is a leaving group. The product azetidinones are intermediates in the preparation of penem and carbapenem antibiotics.

REFERENCES:
Tetrahedron Letters, vol. 24, No. 10, pp. 1037-1040 (1983).
Journal of the American Chemical Society, Vol. 107, pp. 1438-1439 (1985).
Bulletin of the Chemical Society of Japan, vol. 58, pp. 3264-3270 (1985).
Tetrahedron Letters, vol. 39, No. 14, pp. 2399-2407 (1983).

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