2-(1-苄基-4-羟基哌啶-4-基)乙酸乙酯

1-Benzyl-4-hydroxy-1-azoniabicyclo[2.2.2]octane 4-methylbenzenesu lfonate

N-苄基-3,3'-亚氨基二丙酸

1-[(4-Chlorophenyl)sulfonyl]-4-(2-methoxyphenyl)piperazine