Allyl (5S,6S,7RS)-5-[(R)-1-hydroxyethyl]-4-oxo-3-aza-11-thiatricyclo[5.4.0.03,6 ]undec-1-ene-2-carboxylate 、
sodium 2-ethylhexanoic acid 在
三苯基膦钯 三苯基膦 作用下,
以
tetrahydrofuran-dichloromethane 为溶剂,
生成
Sodium (5S,6S,7RS)-5-[(R)-1-hydroxyethyl]-4-oxo-3-aza-11-thiatricyclo[5.4.0.03,6 ]undec-1-ene-2-carboxylate