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  • C07D477/00
    		•  Heterocyclic compounds containing 1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula: , e.g. carbapenicillins, thienamycins; Such ring systems being further condensed, e.g. 2,3-condense HB CC 4C050
  • C07D477/02
    		•  .Preparation(by microbiological processes C12P17/18) [6] HB CC 4C050
  • C07D477/04
    		•  ..by forming the ring or condensed ring systems [6] HB CC 4C050
  • C07D477/06
    		•  ..from compounds already containing the ring or condensed ring systems, e.g. by dehydrogenation of the ring, by introduction, elimination or modification of substituents [6] HB CC 4C050
  • C07D477/08
    		•  ...Modification of a carboxyl group directly attached in position 2, e.g. esterification [6] HB CC 4C050
  • C07D477/10
    		•  .with hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 4, and with a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, e.g. an ester or nitrile radical, directly attached in p HB CC 4C050
  • C07D477/12
    		•  ..with hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, attached in position 6 [6] HB CC 4C050
  • C07D477/14
    		•  ...with hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, attached in position 3 [6] HB CC 4C050
  • C07D477/16
    		•  ...with hetero atoms or carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. an ester or nitrile radical, directly attached in position 3 [6] HB CC 4C050
  • C07D477/18
    		•  ....Oxygen atoms [6] HB CC 4C050
  • C07D477/20
    		•  ....Sulfur atoms [6] HB CC 4C050
  • C07D477/22
    		•  ....Nitrogen atoms [6] HB CC 4C050
  • C07D477/24
    		•  ..with hetero atoms or carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. an ester or nitrile radical, directly attached in position 6 [6] HB CC 4C050
  • C07D477/26
    		•  .with hetero atoms or carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. an ester or nitrile radical, directly attached in position 4 [6] HB CC 4C050
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