674807-36-4

6'-amino-3'-butyl-5-chloro-2-oxo-1,2-dihydro-2'H-spiro[indole-3,4'-pyrano[2,3-c]pyrazole]-5'-carbonitrile Spiro[3H-indole-3,4'(1'H)-pyrano[2,3-c]pyrazole]-5'-carbonitrile, 6'-amino-3'-butyl-5-chloro-1,2-dihydro-2-oxo- 6'-amino-3'-butyl-5-chloro-1,1',3,4'-tetrahydro-2-oxospiro(2H-indole-3,4'-pyrano[2,3-c]pyrazole)-5'-carbonitrile