Mercury intermediates useful in the preparation of 2-alkoxy ceph

Details Mercury intermediates useful in the preparation of 2-alkoxy ceph Mercury intermediates useful in the preparation of 2-alkoxy ceph

1975-11-17

1977-06-14

Daus, Donald G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260270K, 260299, 260326E, 26032622, 2603322H, 2603472, C07D20508

Patent

active

040296458

ABSTRACT:
Compounds of the formula ##STR1## WHEREIN R.sub.1 is lower alkyl, diphenylmethyl, 2,2,2-trichloro-ethyl, p-methoxybenzyl, or p-nitrobenzyl; R.sub.2 is hydrogen or acetoxy; R.sub.5 is lower alkyl; and R.sub.4 is ##STR2## wherein R.sub.3 is a heterocyclic group, lower alkyl, cycloalkyl, cycloalkenyl, cycloalkadienyl, phenyl, substituted phenyl, phenyl-lower alkyl, or phenoxy and X is hydrogen, protected amino or protected hydroxy provided that X is protected amino or protected hydroxy only when R.sub.3 is phenyl, substituted phenyl, or cycloalkadienyl, are disclosed. These compounds are useful as intermediates in the preparation of antibacterially active 2-alkoxy cephalosporins.

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