摘要:
An acid addition salt of a carbasugar amine derivative represented by the following general formula (1): wherein R and R each independently represents hydrogen or an alkyl, alkenyl, alkynyl, acyl, aryl, or aralkyl group optionally having one or more substituents represented by the following (I) or (II), or R and R in combination represent a substituent represented by the following (III): (wherein R to R each independently represents alkyl, alkenyl, alkynyl, acyl, aryl, or aralkyl), provided that not both of R and R are hydrogen; R , R , and R each independently represents hydroxy or substituted hydroxy; and R and R each independently represents hydrogen, hydroxy, or substituted hydroxy, provided that when one of R and R is hydrogen, then the other is hydroxy or substituted hydroxy.