cycloxexanone dimethyl ketal
O4-(6-amino-2-benzyloxycarbonylamino-N6,O4-carbonyl-α-D-2,6-dideoxy-glucopyranosyl)-O6-(3-amino-N,O2-carbonyl-α-D-3-deoxy-glucopyranosyl)-N,N'-bis-benzyloxycarbonyl-1D-2-deoxy-streptamine
N,N'-bis-benzyloxycarbonyl-O4-(3-benzyloxycarbonylamino-α-D-3-deoxy-glucopyranosyl)-O6-(2,6-bis-benzyloxycarbonylamino-α-D-2,6-dideoxy-glucopyranosyl)-1L-2-deoxy-streptamine