Hexanoic acid (R)-1-[((S)-1-carbamoyl-2-hydroxy-ethylcarbamoyl)-methyl]-dodecyl ester 在
4 A molecular sieve 、
silver trifluoromethanesulfonate 、
溶剂黄146 、
锌 作用下,
以
1,2-二氯乙烷 为溶剂,
生成 (R)-3-Hexanoyloxy-tetradecanoic acid (2R,3R,4R,5S,6R)-3-amino-2-[(S)-2-carbamoyl-2-((R)-3-hexanoyloxy-tetradecanoylamino)-ethoxy]-5-(diphenoxy-phosphoryloxy)-6-hydroxymethyl-tetrahydro-pyran-4-yl ester