You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule but-2-yne;2-chloro-4-(4-isocyanophenyl)pyrimidine;4-(4-isocyanophenyl)-N-(4-morpholin-4-ylphenyl)pyrimidin-2-amine;4-morpholin-4-ylaniline;sulfane .
user
C46H47ClN10O2S
assistant