Process for the preparation of phenyltetrazole derivatives

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United States of America Patent

PATENT NO 7385062
APP PUB NO 20060183916A1
SERIAL NO

10567492

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Abstract

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A process for the preparation of phenyltetrazole derivatives of formula (II) wherein R and Y are as defined in the disclosure, by direct ortho-metallation of (tetrazol-5-.gamma.l)benzene. The compounds of formula (II) are useful intermediates for the preparation of angiotensin II antagonists. ##STR00001##

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Patent Owner(s)

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DIPHARMA S P AITALY MAI LI TODD TOMBA MILAN MILAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Allegrini, Pietro San Donato Milanese, IT 114 341
Bologna, Alberto Crema, IT 14 45
Castaldi, Graziano Briona, IT 87 309
Lucchini, Vittorio San Donato Milanese, IT 14 50
Rasparini, Marcello Pieve Ligure, IT 13 8
Razzetti, Gabriele Sesto S. Giovanni, IT 65 118

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