C07D499/21 - CPC Classification

Heterocyclic compounds containing 4-thia-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula:, e.g. penicillins, penems; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring with a nitrogen atom directly attached in position 6 and 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 position 2

• C07D499/22 » Salts with organic bases; Complexes with organic compounds 0
• C07D499/28 » with modified 2-carboxyl group 0
• C07D499/42 » Compounds with a free primary amino radical attached in position 6 0
• C07D499/44 » Compounds with an amino radical acylated by carboxylic acids, attached in position 6 6
• C07D499/78 » Compounds with an amino radical, acylated by carbonic acid, or by nitrogen or sulfur analogues thereof, attached in position 6 3
• C07D499/80 » Compounds with a nitrogen-containing hetero ring, attached with the ring nitrogen atom in position 6 4

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