Syntheses and reactivities of non-symmetrical “active ester” bi-dentate cross-linking reagents having a phthalimidoyl and acid chloride, 2-benzothiazole, or 1-benzotriazole group
作者:Md. Chanmiya Sheikh、Shunsuke Takagi、Mebumi Sakai、Tasuya Mori、Naoto Hayashi、Tetsuo Fujie、Shin Ono、Toshiaki Yoshimura、Hiroyuki Morita
DOI:10.1039/c0ob00671h
日期:——
active ester” bi-dentate cross-linking reagents having an acid chloride, 2-benzothiazole, or 1-benzotriazole group (i.e., 9, 15, and 16) on the basis of the reactivity study of the “active ester” model compounds, 11–14, toward the various nucleophiles and examined their reaction selectivity towards the same nucleophiles. Then, we applied for the modification of cholesterol at the more reactive site of
我们已经新合成的非对称的“苯二甲酰活性酯”二齿交联具有酸氯化物试剂,2-苯并噻唑,或1-苯并三唑基(即,9,15,和16的反应性的基础上)研究“活性酯”模型化合物11-14对各种亲核试剂的反应,并研究了它们对相同亲核试剂的反应选择性。然后,我们申请对胆固醇在二齿接头的更多反应性位点,得到3 β -cholesteryl 4-(phthalimidoyloxycarbonyl)丁酸酯(39),以及随后的反应39与若干胺,如苄胺, 4-氯苄胺, 2-苯乙胺, L-苯丙氨酸甲酯, 或者 二苯丙氨酸苄酯 作为胆固醇抗原的蛋白质模型。