1,2,4-Dithiaaz-3-enes

Details 1,2,4-Dithiaaz-3-enes 1,2,4-Dithiaaz-3-enes

1975-04-24

1977-02-01

Ford, John M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D28500

Patent

active

040061396

ABSTRACT:
The invention relates to compounds of the formula: ##STR1## wherein R stands for benzyl, phenoxymethyl, 4-amino-4-carboxy-1-butyl, R.sup.3 O--, R.sup.3 S--, R.sup.3 R.sup.4 N-- wherein R.sup.3 is loweralkyl, aryl or arylloweralkyl, R.sup.4 is hydrogen or R.sup.3, and OH when the radicals R.sup.3 O--, R.sup.3 S-- and R.sup.3 R.sup.4 N--are hydrolyzed; R.sup. 2 is hydrogen or methoxy, and R.sup.1 is hydrogen or a cleavable radical such as --CH.sub.2 OCH.sub.3, loweralkyl, 2,2,2-trichloroethyl, benzyl, p-nitrobenzyl, benzhydryl, phenoxyethyl or trimethylsilyl. The novel compounds are useful intermediates in the preparation of known penicillin and cephalosporin derivatives.

REFERENCES:
tanida et al., Tetrahedron Letters, No. 35, pp. 3063-3064 (1975).

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