1197815-67-0

100283 -pyrano[3,2-c]pyrazole]-1-carboxylate 1-BOC-2'-TERT-BUTYL-7'-OXO-6',7'-DIHYDRO-1H,2'H-SPIRO[PIPERIDINE-4,5'-PYRANO[3,2-C]PYRAZOLE] tert-Butyl 2'-tert-butyl-7'-oxo-6',7'-dihydro-2'H-spiro-[piperidine-4,5'-pyrano[3,2-c]pyrazole tert-butyl 2'-tert-butyl-7'-oxo-6',7'-dihydro-2'H-spiro[piperidine-4,5'-pyrano[3,2-c]pyrazole]-1-carboxylate Spiro[piperidine-4,5'(2'H)-pyrano[3,2-c]pyrazole]-1-carboxylic acid, 2'-(1,1-dimethylethyl)-6',7'-dihydro-7'-oxo-, 1,1-dimethylethyl ester