abstract |
Biphenylyl tetrazoles for treating hypertension in mammals of formula (I), where X is CH2, O, S, N-R4, NH, NCHO, NCOCH¿3? or NCO2R?4; R1 and R2¿ are the same or different and are C¿1-6?alkyl; and R?4¿ is C¿1-6?alkyl; including methods and intermediates for the production of the same. |