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-(7-isopropylpyrido[2,3-d]pyrimidin-4-ylamino)thiophene-2-carboxylate

(S)-5-(4-aminophenylthio)-4-(7-isopropylpyrido[2,3-d]pyrimidin-4-ylamino)-N-(2-phenylpropyl)thiophene-2-carboxamide

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