普瑞巴林杂质21, Pregabalin Impurity 21

1H-吡咯并[2,3-c]吡啶-4-腈, 1H-Pyrrolo[2,3-c]pyridine-4-carbonitrile

咪唑并[1,2-A]吡嗪-8-羧酸甲酯, methyl imidazo[1,2-a]pyrazine-8-carboxylate

(4-氟苯并[d]噻唑-2-基)甲醇, (4-Fluorobenzo[d]thiazol-2-yl)methanol

1-苄基4-(叔丁基)(S)-2-(氰基甲基)哌嗪-1,4-二羧酸酯, 1-Benzyl 4-(tert-butyl) (S)-2-(cyanomethyl)piperazine-1,4-di

2-((叔丁氧基羰基)氨基)-3-环己基丙酸, 2-((tert-Butoxycarbonyl)amino)-3-cyclohexylpropanoic acid

2-溴-4-硝基苯腈, 2-Bromo-4-nitrobenzonitrile

(3aS,3a'S,8aR,8a'R)-2,2'-(1,3-双(4-(叔丁基)苯基)丙烷-2,2-二基)双(3a,8a-二氢-8H)-茚并[1,2-d]噁唑), (3aS,3a'S,8aR,8a'R)-2,2'-(1,3-Bis(4-(tert-butyl)phenyl)propa

(S)-2-(((苄氧基)羰基)氨基)-4-(叔丁氧基)-4-氧代丁酸水合物, (S)-2-(((Benzyloxy)carbonyl)amino)-4-(tert-butoxy)-4-oxobuta

2-(4,4,5,5-四甲基-1,3,2-二氧杂硼杂环戊烷-2-基)-6-(三氟甲基)-1H-吲哚, 2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-6-(trifluoro