| 摘要 |
This invention provides novel tetrazole intermediates of the formula <IMAGE> wherein R1 and R4 each are independently hydrogen, halogen, C1-4alkyl, C1-4alkoxy or trifluoromethyl; R2, R3, R5 and R6 each are independently hydrogen, halogen, C1-4alkyl or C1-4alkoxy; B is hydrogen, C1-4alkoxycarbonyl, CH2Y or CH2Z; Y is hydrogen, hydroxyl or X; Z is <IMAGE> X is bromo, chloro or iodo; R10 is C1-4alkyl; and R11 is phenyl which is unsubstituted or substituted by one or two C1-4alkyl or chloro substituents. and processes thereof which are useful for the preparation of antihypercholesterolemic agents.
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