A chemical reaction in which two reactive groups within the same molecule are brought together to form a new covalent bond.
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(2R,3S)-5,7,3',4'-tetrabenzyloxyflavan-3-yl glutarate
1,1-bis<4-(N-oxy-tert-butylamino)phenyl>-2-methyl-1-propene
Acetic acid, oxo-, cyclohexyl ester
