2-bromo-6-isopropyl-nicotinonitrile

N'-(3-cyano-6-isopropyl-pyridin-2-yl)-N,N-dimethyl-formamidine

ethyl 5-(4-aminophenylthio)-4-nitrothiophene-2-carboxylate

ethyl 5-(4-(((9H-fluoren-9-yl)methoxy)carbonylamino)phenylthio)-4-nitrothiophene-2-carboxylate

ethyl 5-(4-(((9H-fluoren-9-yl)methoxy)carbonylamino)phenylthio)-4-aminothiophene-2-carboxylate