New Procedure to Mask the 2,3-π Bond of the Indole Nucleus and Its Application to the Preparation of Potent Opioid Receptor Agonists with a Corynanthe Skeleton
作者:Hiromitsu Takayama、Kaori Misawa、Naoki Okada、Hayato Ishikawa、Mariko Kitajima、Yoshio Hatori、Toshihiko Murayama、Sumphan Wongseripipatana、Kimihito Tashima、Kenjiro Matsumoto、Syunji Horie
DOI:10.1021/ol062173k
日期:2006.12.1
Treatment of indole alkaloids with hypervalent iodine in the presence of ethylene glycol provides 2,3-ethylene glycol bridged adducts that could be converted into the original indoles under mild reductive conditions. This procedure, which involves masking of the reactivity of the indole nucleus at the beta-position, was utilized for the modification of the benzene ring of the indoline derivative and was
在乙二醇存在下用高价碘处理吲哚生物碱可提供2,3-乙二醇桥接的加合物,可在温和的还原条件下将其转化为原始的吲哚。该方法涉及掩盖吲哚核在β位的反应性,该方法用于修饰吲哚啉衍生物的苯环,并用于制备具有Corynanthe骨架的有效的阿片受体激动剂。[反应:看文字]