Description: 546 organic compounds -- part of the class 532-570 series / 546 organic compounds -- part of the class 532-570 series/() organic compounds (class 532, subclass 1) () heterocyclic carbon compounds containing a hetero ring having chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) or nitrogen as the only ring hetero atoms (class 540, subclass 1) (1) hetero ring is six-membered consisting of one nitrogen and five carbons (184) piperidines (192) additional ring containing (216) chalcogen bonded directly to ring carbon of the piperidine ring (219) plural chalcogens bonded directly to ring carbons of the piperidine ring (220) having -c(=x)-, wherein x is chalcogen, attached directly or indirectly to the piperidine ring by nonionic bonding
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