co-existing of lithium bond and hydrogen bond
connected bond， unblocked bond
lloyd’s average bond {standard form of average bond}
1-(1-Amido)alkyl-2-naphthols
2-amido-3-phenyl acrylate
4-(2-Amido-2-ethoxycarbonyl) ethylsulfenyl-4-deoxy-4′-demethylepipodophyllotoxin analogues
4-(2-酰胺基-2-乙氧羰基)乙硫基-4-脱氧-4′-去甲基表鬼臼毒素衍生物
4-(3-Amido-2-oxo-azetidinonyl-1) cyclohexane carboxylic acid
4-(3-酰氨基-2-氧-吖丁啶基-1)-环己甲酸