Synthesis of vinyl sulfide analogs of 2,3-oxidosqualene and their inhibition of 2,3-oxidosqualene lanosterol-cyclases
作者:Yi Feng Zheng、Dharmpal S. Dodd、Allan C. Oehlschlager、Peter G. Hartman
DOI:10.1016/0040-4020(95)00213-r
日期:1995.5
aldehydes. Mixtures of syn and anti α-hydroxydiphenylphosphine adducts were separated by chromatography and the syn isomers were transformed to the E-vinyl sulfides. Both (6E)-5- and (18E)-20-thia-2,3-OS inhibited OSC from Candida albicans (IC50 = 47 and 0.2 μM, respectively) and rat liver (IC50 = 7.7 and 0.32 μM, respectively). Their activities were compared with those of previously synthesized (6E)-8-
所有反式(6 E)-5-,(10 E)-9- ,(14 E)-16-和(18 E)-20-thia-2,3-oxidosqualenes的合成,作为2,3-oxidosqualene的抑制剂报道了-羊毛甾醇环化酶(OSC)。为了模拟2,3-氧化角鲨烯(2,3-OS)的自然几何形状,我们需要E-乙烯基硫化物,它是通过将硫取代的Wittig-Horner试剂(α-硫代萜烯基二苯基膦氧化物)与适当的醛缩合而制备的。通过色谱法分离出顺式和反式α-羟基二苯基膦加合物的混合物,并将顺式异构体转化为E-乙烯基硫化物。两者(6 E基)-5-和(18 Ë)-20-硫杂-2,3- OS抑制OSC从白色假丝酵母(IC 50 = 47和0.2 μ分别用M,)和大鼠肝(IC 50 = 7.7和0.32 μ分别男, )。将它们的活性与先前合成的(6 E)-8-和(14 E)-13-thia-2,3-OSs(IC 50