英文别名2-Butyl-3-[[2'-cyano-[1,1'-biphenyl]-4-yl]methyl]-1,3-diazaspiro[4,4]non-1-en-4-one; 4'-[(2-Butyl-4-oxo-1,3-diazaspiro[4.4]non-1-en-3-yl)methyl]-(1,1'-biphenyl)-2-carbonitrile; Irbesartan Alkylation; Irbesartan Impurity 12; 4'-[(2-Butyl-4-oxo-1,3-diazaspiro[4.4]non-1-en-3-yl)methyl]biphenyl-2-carbonitrile; 4'-(2-Butyl-4-oxo-1,3-diaza-spiro[4.4]non-1-en-3-ylmethyl)biphenyl-2-carbonitrile; 4'-[(2-Butyl-4-oxo-1,3-diazaspiro[4.4]non-1-en-3-yl)methyl]-2-biphenylcarbonitrile 
