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system
Provide the molecular formula for the IUPAC named substance (4R)-4-(azetidine-1-carbonyl)-2-ethyl-7-[5-[(4-fluorophenyl)methyl]-1,3,4-thiadiazol-2-yl]-9-hydroxy-4-methyl-3H-pyrido[1,2-a]pyrazine-1,8-dione;4-O-tert-butyl 1-O-methyl (2R)-2-(ethylaminomethyl)-2-methylbutanedioate;hydrochloride .
user
C37H50ClFN6O8S
assistant