2(4-Allylthioazetidin-2-on-1-yl)acetic acid ester compounds

Details 2(4-Allylthioazetidin-2-on-1-yl)acetic acid ester compounds 2(4-Allylthioazetidin-2-on-1-yl)acetic acid ester compounds

1983-08-22

1985-04-09

Berch, Mark L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D20508, C07D51304

Patent

active

045100861

ABSTRACT:
What are disclosed are compounds, useful as intermediates in the preparation of substituted penem compounds, of the formula ##STR1## wherein R is a removable esterifying group, R.sup.2 is hydrogen, lower alkyl, lower alkoxyalkyl, lower alkanoyloxyalkyl, or tri-lower alkylsilyloxyalkyl, and R.sub.a, R.sub.b, R.sub.c, R.sub.d, and R.sub.e are hydrogen, aliphatic cycloaliphatic hydrocarbon, free or esterified carboxyl, halo, or cyano, and any two of R.sub.a -R.sub.e, taken together, may form a cycloaliphatic ring.

REFERENCES:
Ernest, Chem. Abs. 95, 169105k, (1981).

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