(R)-1,4-二氧杂螺[4,5]癸烷-2-甲醛 、
4-Methylsulfanylmethoxy-5H-furan-2-one 在
lithium diisopropyl amide 作用下,
以
四氢呋喃 为溶剂,
生成 (S)-5-((R)-(R)-1,4-Dioxa-spiro[4.5]dec-2-yl-hydroxy-methyl)-4-methylsulfanylmethoxy-5H-furan-2-one 、 (R)-5-((R)-(R)-1,4-Dioxa-spiro[4.5]dec-2-yl-hydroxy-methyl)-4-methylsulfanylmethoxy-5H-furan-2-one