Search for α-glucosidase inhibitors: New N-substituted valienamine and conduramine F-1 derivatives
摘要:
A solid-phase synthesis of new N-substituted valienamines has been developed and new synthesis of (+/-)-conduramine F-1, (-)-conduramine F-1, and (+)-ent-conduramine F-1 is presented, together with the preparation of N-benzylated conduramines F-1. N-Benzylation of both valienamine and (+)-ent-conduramine F-1 improves their inhibitory activity toward alpha-glucosidases significantly. The additional hydroxymethyl group makes valienamine derivatives more active than their (+)-ent-conduramine F-1 analogues. (c) 2006 Elsevier Ltd. All rights reserved.
Syntheses of Optically Pure Conduramines via the Strategy of Hetero Diels−Alder Reaction of Masked <i>o</i>-Benzoquinones with Homochiral Nitroso Dienophiles
Highly stereoselective hetero Diels−Alderreactions of masked o-benzoquinones (MOBs) with homochiral nitroso dienophiles are described along with their application in the syntheses of (+)-ent-conduramine F-1, (+)-conduramine E-1, (−)-conduramine A-1, (+)-conduramine A-1 tetraacetate, and (−)-ent-conduramine A-1 tetraacetate.
描述了被掩盖的邻苯甲醌(MOB)与同手性亚硝基二烯亲和体的高度立体选择性杂Diels-Alder反应及其在(+)- ent -conduramine F-1,(+)-conduramine E-1,( -)-conduramine A-1,(+)-conduramine A-1四乙酸盐和(-)- ent -conduramine A-1四乙酸盐。
Efficient enantiospecific synthesis of ent-conduramine F-1
作者:Kavirayani R. Prasad、Vipin Ashok Rangari
DOI:10.1016/j.tet.2018.09.058
日期:2018.11
An efficient enantiospecific total synthesis of ent-conduramine F-1 (aminocyclohexenetriol) was accomplished starting from the bis-Weinreb amide of tartaric acid. Key reactions in the synthesis include the desymmetrization of tartaric acid amide with vinylmagnesium bromide and installation of the required amine using Ellman sulfinimine. Ring closing metathesis was used to synthesize the required alkene
Use of Enantiomerically Pure 7-Azabicyclo[2.2.1]heptan-2-ol as a Chiral Template for the Synthesis of Aminocyclitols
作者:Ganesh Pandey、Keshri Nath Tiwari、V. G. Puranik
DOI:10.1021/ol801381t
日期:2008.8.21
Using enantiopure 7-azabicyclo[2.2.1]heptane-2-ol, the synthesis of cis- as well as trans-2-aminocyclohexanols, dihydroconduramine E-1, and ent-conduramine F-1 has been described.
Iodocyclization and [3,3] sigmatropic rearrangement reactions of N-substituted carbonimidothioates are used to prepare valienamine (1), 7-nor-valienamine (8), and the valienamine-based pseudo-disaccharide 12.
Paulsen, Hans; Roeben, Wolfgang; Heiker, Fred R., Chemische Berichte, 1981, vol. 114, # 10, p. 3242 - 3252