label: 2,3-anhydro-5-O-desosaminyl-11-((3-(4-nitrophenyl)-2-propenyl)hydrazo)-6-O-methylerythronolide A 11,12-carbamate
label_lc: 2,3-anhydro-5-o-desosaminyl-11-((3-(4-nitrophenyl)-2-propenyl)hydrazo)-6-o-methylerythronolide a 11,12-carbamate