5-[13-benzoxy-(2R,6R,10S)-2,6,10-trimethyltridecanelsulfonyl]-1-phenyl-1H-tetrazole

21-benzoxy-1-(tert-butyldiphenylsilyloxy)-(2R,6R,10R,14S,18S)-2,6,10,14,18-pentamethylheneicosane