4. Organic compounds -- part of the class 532-570 series
  5. Organic compounds
  6. Chalcogen in the nitrogen containing substituent

Bernard S. Leon

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(Bezimidazol-2-yl)-pyridinium compounds

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
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(R)-1-(2-furoyloxy)-3-methylbutyl-penicillin

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
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(R,S)-1-(3-Hydroxy-4-methoxybenzoyl)-3-hydroxy-2-pyrrolidinone i

Drug – bio-affecting and body treating compositions – Antigen – epitope – or other immunospecific immunoeffector – Fungus – except allergen – or component thereof or substance...
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(S)-1-[2- (4-(2-Hydroxy-s-(1-alkylaminopropoxy)phenylalkyl]-4-ph

Organic compounds -- part of the class 532-570 series – Organic compounds – Nitrogen attached directly or indirectly to the purine ring...
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.beta.-Endorphin analogs

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
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