6'-Amino-1-benzyl-3'-phenyl-1'H-spiro[piperidine-4,4'-pyrano[2,3-c]pyrazole]-5'-carbonitrile;Spiro[piperidine-4,4'(1'H)-pyrano[2,3-c]pyrazole]-5'-carbonitrile, 6'-amino-3'-phenyl-1-(phenylmethyl)-
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