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Patent AT-E401323-T1: [Translated] SYNTHESIS OF 2-BUTYL-3-(2'-(1-TRITYL-1H-TETRAZOLE- 5-YL)BIPHENYL-4-YL)-1,3-DIAZASPIRO-4,4 -NONEN-4-ONE
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Updated Oct 29, 2026
About this dataset
Provided is a novel method of making 2-butyl-3-[[2'(1-trityl-1H-tetrazol-5-yl)biphen-4-yl]methyl]-1,3-diazaspiro[4.4]non-1-ene-4-one, which can be converted to irbesartan. Also provided are methods of making irbesartan.
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Access the complete Patent AT-E401323-T1: [Translated] SYNTHESIS OF 2-BUTYL-3-(2'-(1-TRITYL-1H-TETRAZOLE- 5-YL)BIPHENYL-4-YL)-1,3-DIAZASPIRO-4,4 -NONEN-4-ONE on the official website.
Modified Jun 29, 2026