User: I have a question about the molecule with SMILES C=CC(=O)Nc1cc(Nc2ncc(C(=O)OC(C)C)c(-c3cn(C)c4ccccc34)n2)c(OC)cc1N(C)CCN(C)C.O=C(O)CCC(=O)O.
Assistant: How can I help?
User: Which USAN substem can this drug or clinical candidate name be matched with?
Assistant: The answer is -tinib (-ertinib)
User: I have a question about the {#molecule|chemical|compound!} with {SMILES__description} {SMILES#}.
Assistant: {#Sure, what is your question?|How can I help?|That sounds interesting, how can I help?|Interesting, how can I help?!}
User: {quest#}
Assistant: {#The answer is |!}{answ#}
C=CC(=O)Nc1cc(Nc2ncc(C(=O)OC(C)C)c(-c3cn(C)c4ccccc34)n2)c(OC)cc1N(C)CCN(C)C.O=C(O)CCC(=O)O
C=CC(=O)Nc1cc(Nc2ncc(C(=O)OC(C)C)c(-c3cn(C)c4ccccc34)n2)c(OC)cc1N(C)CCN(C)C.O=C(O)CCC(=O)O
butanedioic acid;propan-2-yl 2-[4-[2-(dimethylamino)ethyl-methylamino]-2-methoxy-5-(prop-2-enoylamino)anilino]-4-(1-methylindol-3-yl)pyrimidine-5-carboxylate
Which USAN substem can this drug or clinical candidate name be matched with?
-tinib (-ertinib)