α-Methyl phenylglycines by asymmetric α-arylation of alanine and their effect on the conformational preference of helical Aib foldamers
作者:Romain Costil、Fernando Fernández-Nieto、Rachel C. Atkinson、Jonathan Clayden
DOI:10.1039/c8ob00551f
日期:——
α-Arylated alanine derivatives were made enantioselectively by migratory rearrangement of a urea derivative using (R,R)-pseudoephedrine as a chiral auxiliary. Incorporation of a single residue of the product α-methyl phenylglycine into an otherwise achiral oligomer of aminoisobutyric acid oligomer induced a preferred screw sense, detectable by a NMR reporter located at the remote terminus of the oligomer
α-芳基化丙氨酸衍生物是通过使用 ( R , R )-伪麻黄碱作为手性助剂对脲衍生物进行迁移重排来进行对映选择性制备的。将产物α-甲基苯基甘氨酸的单个残基掺入到氨基异丁酸低聚物的其他非手性低聚物中诱导了优选的螺旋感觉,可通过位于低聚物远端的NMR报告子检测到。当手性残基位于折叠体的 N 末端时,螺旋感诱导的幅度更大,并且在某些情况下,诱导感与具有除芳基以外的 α-取代基的相关 α-甲基化氨基酸的诱导感相反.
Dibenzazepinyl ureas as dual NMR and CD probes of helical screw-sense preference in conformationally equilibrating dynamic foldamers
作者:Vincent Diemer、Julien Maury、Bryden A. F. Le Bailly、Simon J. Webb、Jonathan Clayden
DOI:10.1039/c7cc06427f
日期:——
Dibenzazepinyl ureas act as probes to allow conformational analysis of screw-sense preference in dynamic foldamers by both NMR and CD spectroscopy.
二苯并噻吩基脲作为探针,可以通过核磁共振和圆二色光谱技术对动态折叠体中螺旋方向偏好进行构象分析。
Investigation of the anticonvulsant and antihypoxic activity of new dibenzazepine derivatives
作者:V. K. Gorshkova、A. S. Saratikov、L. G. Tignibidina
DOI:10.1007/bf02218989
日期:1994.3
Kreher, Richard; Gerhardt, Werner, Liebigs Annalen der Chemie, 1981, # 2, p. 240 - 247