(1S,9Z,13R,14R,22Z,26S)-13,26-dibromo-6,12,19,25-tetratert-butyl-2,15-dioxaheptacyclo[21.3.1.11,4.110,14.114,17.03,8.016,21]triaconta-3,5,7,9,11,16,18,20,22,24-decaene-27,29-dione 、
sodium thiomethoxide 以
四氢呋喃 、
水 为溶剂,
反应 1.0h,
以68%的产率得到(1S,14R)-6,12,19,25-tetratert-butyl-9,22-bis(methylsulfanyl)-2,15-dioxaheptacyclo[21.3.1.11,4.110,14.114,17.03,8.016,21]triaconta-3,5,7,10,12,16,18,20,23,25-decaene-27,29-dione