4-(4-methylphenyl)piperazine-1-carboxamide

4-(4-butylphenyl)piperazine-1-carboxamide

4-(4-methoxyphenyl)piperazine-1-carboxamide

4-nonylpiperazine-1-carboxamide

4-苄基-1-哌嗪羧酸盐酸盐