Chem. 58:4134-4141 (1993)) to provide 4-Tetrazolyl-4-phenylpiperide Compounds 6, wherein R1 is ???C(O)NZ2 and G is ???H, Compounds 6 are reacted with G1-X, wherein G1 is all G, defined above, except hydrogen, and X is a leaving group such as halogen, trifluoromethane sulfonate, methanesulfonate or toluenesulfonate, to provide a mixture of 4-Tetrazolyl-4-phenylpiperidine Compounds 7 and 8.