製品名:Spiro[piperidine-4,7'-[7H]thieno[2,3-c]pyran]-1-carboxylic acid, 2'-chloro-4',4'-difluoro-4',5'-dihydro-, 1,1-dimethylethyl ester
IUPAC Name:tert-butyl 2'-chloro-4',4'-difluoro-4',5'-dihydrospiro[piperidine-4,7'-thieno[2,3-c]pyran]-1-carboxylate