To enable exploration of
the physiological activity of isotryptamine derivatives, a number of 1,3-di-hydroisotryptamines,
isomers of known tryptamine derivatives possessing significant physiological
activity, were synthesized for the first time. Ring-substituted
1-nitrosonaphthalen-2-ols on tosylation and alkaline treatment gave the
appropriate (Z)-3-(2'-cyanopheny1)propenoic acids, and by hydration,
cyclization and ring-opening these acids were converted into
(3'-oxo-1',3'-dihydroisoindol-1'-yl)- acetic acids. Fusion of these products
with ureas yielded the corresponding (3'-oxodihydroisoindol-1'-yl)acetamides,
which, on simultaneous reduction of the amide and lactam functions by diborane,
yielded 1,3-dihydroisotryptamines. Some features of their n.m.r. spectra are
also discussed.
为了探索
异色胺衍生物的生理活性、
的异构体,这些异构体具有显著的生理活性。
首次合成。环取代的
环取代的 1-硝基萘-2-醇经对甲苯磺酰化和碱处理,得到了相应的
(Z)-3-(2'-氰基苯 1)丙烯酸,并通过水合、环化和环开烯酮化反应合成了这些化合物、
通过水合、环化和开环,这些酸被转化为
(3'-氧代-1',3'-二氢异吲哚-1'-基)-乙酸。这些产物
与脲类融合后,得到相应的(3'-氧代二氢异吲哚-1'-基)乙酰胺、
在用二硼烷同时还原酰胺和内酰胺官能团时,可生成 1,3-二氢-1,3-异吲哚-1'-基乙酰胺、
生成 1,3-二氢异色胺。本文还讨论了它们的 n.m.r. 光谱的一些特征。
还讨论了它们的 n.m.r. 光谱的一些特征。