Patent ID: 6100239
Filing Date: 2000-08-08
Classification: C07H

Abstract:
A compound represented by the formula (I) ##STR12## wherein R.sub.1 represents a hydrogen atom or an acyl group; R.sub.2 and R.sub.3 may be the same or different, and each represents a hydrogen atom, a hydroxyl group, an acyloxy group or an amino group, or R.sub.2 and R.sub.3 in combination represent .dbd.O or .dbd.NOR.sub.11 ; where R.sub.11 represents a hydrogen atom or a lower alkyl group; R.sub.4 and R.sub.5 may be the same or different, and each represents a hydrogen atom or a hydroxyl group, or R.sub.4 and R.sub.5 in combination represent .dbd.O or .dbd.NOR.sub.11 ; Y represents --N(R.sub.6) (R.sub.7) or --N.sup.+ (R.sub.8) (R.sub.9) (R.sub.10)X.sup.- ; where R.sub.6, R.sub.7, R.sub.8, R.sub.9 and R.sub.10 may be the same or different, and each represents a hydrogen atom, an acyl group, an unsubstituted or substituted lower alkyl group, an unsubstituted or substituted lower alkenyl group, an unsubstituted or substituted lower alkynyl group, an unsubstituted or substituted cycloalkyl group, or amonocyclic, saturated, 3- to 7-membered heterocyclic ring comprising an oxygen atom, a sulfur atom or a nitrogen atom as a hetero atom which may have a substituent(s), or R.sub.6 and R.sub.7, or R.sub.8 and R.sub.9 may form an azacycloalkyl group together with the neighboring nitrogen atom, respectively; and X.sup.- represents an anion,or a salt thereof.