D-脯氨醇; L-脯氨醇; D-苯丙氨醇; L-苯丙氨醇; 2-哌啶甲醇;3-哌啶甲醇；4-哌啶甲醇；L-缬氨醇D-缬氨醇;；D-亮氨醇；4-苯基-1-丁醇；(R)-(+)-alpha,alpha-二苯基脯氨醇；(S)-(+)-alpha,alpha-二苯基脯氨醇；N-Boc-D-脯氨醇; N-BOC-L-脯氨醇; 1-甲基-2-哌啶甲醇1-甲基-3-哌啶甲醇 1-甲基-4-哌啶甲醇； N-Boc-4-哌啶甲醇; N-叔丁氧羰基-4-哌啶甲醇； 4-吡咯烷基吡啶； 2-哌啶甲酸甲酯；3-哌啶甲酸甲酯；4-哌啶甲酸甲酯；2-哌啶甲酸乙酯; 3-哌啶甲酸乙酯；4-哌啶甲酸乙酯