with hydrocarbon radicals, substituted by hetero atoms or hetero rings, attached in position 3

Full Title

Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula: [IMAGE cpc-sch-C07D-0993.gif] , e.g. cephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring > Compounds having a nitrogen atom directly attached in position 7 > with a double bond between positions 2 and 3 > 7-Acylaminocephalosporanic or substituted 7-acylaminocephalosporanic acids in which the acyl radicals are derived from carboxylic acids > with hydrocarbon radicals, substituted by hetero atoms or hetero rings, attached in position 3

Child Classifications

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• C07D 501/26 Methylene radicals, substituted by oxygen atoms; Lactones thereof with the 2-carboxyl group
• C07D 501/36 Methylene radicals, substituted by sulfur atoms
• C07D 501/38 Methylene radicals, substituted by nitrogen atoms; Lactams thereof with the 2-carboxyl group; Methylene radicals substituted by nitrogen-containing hetero rings attached by the ring nitrogen atom; Quaternary compounds thereof
• C07D 501/48 Methylene radicals, substituted by hetero rings (C07D501/38 - C07D501/46 take precedence)