tert-Butyl 2'-(((trifluoromethyl)sulfonyl)oxy)-5',6'-dihydrospiro[azetidine-3,4'-pyrrolo[1,2-b]pyrazole]-1-carboxylate 1g

tert-Butyl 2'-(((trifluoromethyl)sulfonyl)oxy)-5',6'-dihydrospiro[azetidine-3,4'-pyrrolo[1,2-b]pyrazole]-1-carboxylate 1g