2′-(4-Chlorophenyl)-2,3,4,5,6,7-hexahydro-4′,7′-methanospiro[9H-fluorene-9,3′-1H-indazole]-1′-carbonitrile and methyl 4′-chloro-2′-(4-chlorophenyl)-1′-cyanospiro[9H-fluorene-9,3′-pyrazolidine]-4′-carboxylate