LU71284A1LU71284ALU71284ALU71284A1LU 71284 A1LU71284 A1LU 71284A1LU 71284 ALU71284 ALU 71284ALU 71284 ALU71284 ALU 71284ALU 71284 A1LU71284 A1LU 71284A1
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LU
Luxembourg
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LU71284A
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Priority claimed from FR7330431Aexternal-prioritypatent/FR2196822B3/fr
Priority claimed from FR7414436Aexternal-prioritypatent/FR2268525A1/fr
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C07D501/00—Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula:, e.g. cephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
C07D501/14—Compounds having a nitrogen atom directly attached in position 7
C07D501/16—Compounds having a nitrogen atom directly attached in position 7 with a double bond between positions 2 and 3
C07D501/20—7-Acylaminocephalosporanic or substituted 7-acylaminocephalosporanic acids in which the acyl radicals are derived from carboxylic acids