C07F 9/65613

Containing the ring system [image cpc-sch-c07f-1004.gif] optionally with an additional double bond

Official title: {containing the ring system [IMAGE cpc-sch-C07F-1004.gif] (X = CH2, O, S, NH) optionally with an additional double bond and/or substituents, e.g. cephalosporins and analogs}

C07F9/65613 (Containing the ring system [image cpc-sch-c07f-1004.gif] optionally with an additional double bond) appears on 69 US grants and 20 published applications in this corpus.

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