A compound which is a compound of formula (I) or any salt thereof: wherein R1 is a Ci-C6 alkyl group, R2 is H or a Ci-C6 alkyl group, R3 is H or a Ci-C6 alkyl group, and n is an integer from 0 to 5.
一种化合物,其
化学式为(I)或其任何盐:其中R1是一种碳原子数为1至6的烷基基团,R2是氢或一种碳原子数为1至6的烷基基团,R3是氢或一种碳原子数为1至6的烷基基团,n为0至5之间的整数。