[EN] 2-AZABICYCLO[3.1.1] DERIVATIVES AS ANTAGONISTS OF THE OREXIN-1 AND OREXIN-2 RECEPTORS [FR] DÉRIVÉS DE 2-AZABICYCLO[3.1.1] UTILISÉS EN TANT QU'ANTAGONISTES DES RÉCEPTEURS DE L'OREXINE-1 ET DE L'OREXINE-2
Effect of pressure on the Strecker synthesis of hindered α-aminonitriles from ketones and aromatic amines
作者:Gérard Jenner、Ridha Ben Salem、Jong Chul Kim、Kiyoshi Matsumoto
DOI:10.1016/s0040-4039(02)02598-4
日期:2003.1
effect of highpressure is examined in Strecker reactions involving ketones, amines and trimethylsilyl cyanide. This effect is small when moderately hindered reactants are involved. However, in the case of aniline and N-methylaniline, the sensitivity of the reaction to pressure increases with increasing steric bulk of the alkyl groups of the ketone. The results confirm the merit of pressure activation
Catalyst-Free Strecker Reaction in Water: A Simple and Efficient Protocol Using Acetone Cyanohydrin as Cyanide Source
作者:Paola Galletti、Matteo Pori、Daria Giacomini
DOI:10.1002/ejoc.201100089
日期:2011.7
nitriles through a one-pot, three-componentStreckerreaction of a carbonyl compound, amine, and acetone cyanohydrin in water has been developed. Reactions proceed very efficiently without any catalyst at room temperature with high chemoselectivity and give, in some cases, the expected α-amino nitrile pure after direct separation from water. The protocol is particularly efficient for both aliphatic and
One-stage synthesis of adamantyl-containing α-aminonitriles
作者:Yu. V. Popov、V. M. Mokhov、N. A. Tankabekyan
DOI:10.1134/s107042801308006x
日期:2013.8
Reactions of 2-adamantan-2-one, acetone cyanohydrin, and amine lead to the formation of substituted 2-amino-2-cyanoadamantanes. The reaction is of a general character as has been proved by examples on a series of ketones and amines and it proceeds through the formation from the acetone cyanohydrin and amines of 2-amino-2-cyanopropane derivatives reacting further with the carbonyl compounds.
Synthesis and structure–activity investigation of iodinated arylhydantoins and arylthiohydantoins for development as androgen receptor radioligands
作者:Marcian E. Van Dort、Yong-Woon Jung
DOI:10.1016/j.bmcl.2004.08.031
日期:2004.11
A series of side-chain derivatives of the arylhydantoin RU 58841 and the arylthiohydantoin RU 59063, wherein the aromatic trifluoromethyl group was replaced with iodine, was synthesized for possible development as radioiodinated androgon receptor (AR) ligands. Derivatives containing the cyanomethyl, methoxyethyl and propenyl side-chains displayed moderately high affinity (K-i = 20-59 nM) towards the rat AR. Side-chains containing bulky lipophilic groups such as, benzyl and phenylpropyl, were poorly tolerated (K-i > 219 nM). Superior AR binding affinities (0.71 nM < Ki < 11 nM) were displayed by arylhydantoins and arylthiohydantom derivatives containing hydroxybutyl or methyl side-chains. The latter compounds are potential candidates for development as radioiodinated AR ligands. (C) 2004 Elsevier Ltd. All rights reserved.
Kuhn; Schretzmann, Biokhimiya, 1957, vol. 22, p. 183,184;engl.Ausg.S.173