| abstract |
PROCEDURE FOR THE PREPARATION OF B-LACTAMIC ANTIBIOTICS, OF A GENERAL FORMULA (I), IN WHICH R1 AND R2 EACH REPRESENT A HYDROGEN ATOM OR AN ORGANIC GROUP UNITED THROUGH A CARBON ATOM TO THE AZABYCYCLO RING; R3 AND R4 EACH REPRESENT AN ORGANIC GROUP UNITED THROUGH A CARBON ATOM TO THE AZABICYCLOHEPTENE RING; AND R6 IS AN ORGANIC GROUP UNITED THROUGH A CARBON ATOM TO THE SULFUR ATOM, AND THE PHARMACEUTICALLY ACCEPTABLE SALTS. CONSISTS OF ELIMINATING THE FORMULA COMPOUND (II) FROM THE HX MOLECULE, WHERE X IS A COMPOUND; AND RA IS A CARBOXY-BLOCKING GROUP OF APPLIOATION AS ANTIBACTERIAL AGENTS. |