1-叔丁基-4-氰基-1H-吡唑, 1-(tert-Butyl)-1H-pyrazole-4-carbonitrile

2-氨基-4-甲基噁唑-5-羧酸乙酯, Ethyl 2-amino-4-methyloxazole-5-carboxylate

2-氯-3-氰基-4-甲基吡啶, 2-Chloro-4-methylnicotinonitrile

5-(2-吡啶基)吡唑-3-甲酸甲酯, Methyl 3-(pyridin-2-yl)-1H-pyrazole-5-carboxylate

5-溴-2-吡唑-1-基-嘧啶, 5-Bromo-2-pyrazol-1-yl-pyrimidine

2-氯-3-碘苯酚, 2-Chloro-3-iodophenol

3-(2-甲氧基-2-氧代乙基)氮杂环丁烷-1-羧酸叔丁酯, tert-Butyl 3-(2-methoxy-2-oxoethyl)azetidine-1-carboxylate

(S)-4,5-二氯-N-((2-氧代-3-(4-(3-氧代吗啉代)苯基)噁唑烷-5-基)甲基)噻吩-2-甲酰胺, (S)-4,5-dichloro-N-((2-oxo-3-(4-(3-oxomorpholino)phenyl)oxaz

4-(5-异丙氧基-2-甲基-4-硝基-苯基)-吡啶, 4-(5-Isopropoxy-2-methyl-4-nitrophenyl)pyridine

厄洛替尼杂质B, Erlotinib impurity B