5-[(4-氟苯基)甲基]-3,4-二氢-2H-吡咯

4-(苯氧基)丁腈

4-[(苄基)氨基]丁腈

4-imidazol-1-ylbutanenitrile

4-chloro-3-fluoro-2-methoxy-3-methylhex-4-enoic acid