2-(2,2-dimethylpropionyloxycarbamoyl)-4-methylpentanoic acid 、 pentanoic acid (2-aminoethyl)-[2'-(1H-tetrazol-5-yl)biphenyl-4-ylmethyl]amide trifluoroacetate 在
N,N-二异丙基乙胺 、 Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
生成
N-(2,2-dimethyl-1-propionyloxy)-2-isobutyl-N'-(2-{pentanoyl-[2'-(1H-tetrazol-5-yl)biphenyl-4-ylmethyl]amino}ethyl)malonamide