N-Methyl-N-phenyl-5-oxa-1-azaspiro[2.5]oct-1-en-2-amine — Synthesis and Reactions of a Synthon for an Unknown α-Amino Acid
摘要:
The synthesis of the heterospirocyclic amino azirine N-methyl-N-phenyl-5-oxa-1-azaspiro[2.5]oct-1-en-2-amine (6a) was achieved from 3,4-dihydro-2H-pyrane (7) via N-methyl-N-phenyltetrahydropyran-3-thiocarboxamide (11). The reactions of 6a with thiobenzoic acid and Z-Phe-OH, respectively, leading to the corresponding 3-benzoylaminotetrahydropyran-3-thiocarboxamide (13) and the diastereoisomeric dipeptide amides (14), respectively, demonstrate that 6a is a valuable synthon for the hitherto unknown 3-aminotetrahydropyrane-3-carboxylic acid. The structure of 13 was established by X-Ray crystallography.
Design and Synthesis of Natural Product Inspired Libraries Based on the Three-Dimensional (3D) Cedrane Scaffold: Toward the Exploration of 3D Biological Space
作者:Fatemeh Mazraati Tajabadi、Rebecca H. Pouwer、Miaomiao Liu、Yousef Dashti、Marc R. Campitelli、Mariyam Murtaza、George D. Mellick、Stephen A. Wood、Ian D. Jenkins、Ronald J. Quinn
DOI:10.1021/acs.jmedchem.8b00194
日期:2018.8.9
embedded cedrane scaffold. Synthesis of three focused natural product-like librariesbased on the 3D cedrane scaffold was achieved. A phenotypic assay was used to test the biological profile of synthesized compounds against normal and Parkinson’s patient-derived cells. The cytological profiles of the synthesized analogues based on the cedrane scaffold revealed that this 3D scaffold, prevalidated by
[EN] STEROIDAL [3, 2-C] PYRAZOLE COMPOUNDS, WITH GLUCOCORTICOID ACTIVITY<br/>[FR] COMPOSÉS [3, 2-C] PYRAZOLE STÉROÏDES À ACTIVITÉ GLUCOCORTICOÏDE
申请人:ASTRAZENECA AB
公开号:WO2009044200A1
公开(公告)日:2009-04-09
The present invention provides compounds of formula (I) wherein n, p, R1, R2, X1, X2, X3, X4, X5, R3a, R3b, R4, R5 and R6 are as defined in the specification, a process for their preparation, pharmaceutical compositions containing them and their use in therapy.
Parallel synthesis of derivatives of 1H-1,2,4-triazole-3-carboxylic acids with heterocyclic substituents at position 5
作者:Lyubov E. Grebenkina、Andrey V. Matveev、Mikhail V. Chudinov
DOI:10.1007/s10593-020-02794-2
日期:2020.9
A mild universal method for the synthesis of derivatives of 5-substituted 1H-1,2,4-triazole-3-carboxylic acids from a single precursor, ethyl β-N-Boc-oxalamidrazone, has been proposed. The method was applied for the parallel synthesis of a library of 1H-1,2,4-triazole-3-carboxamides with heterocyclic substituents at position 5.
已经提出了一种温和的通用方法,该方法可从单一的前体乙基β- N -Boc-草并dra酮合成5个取代的1 H -1,2,4-三唑-3-羧酸的衍生物。该方法适用于1 H -1,2,4-三唑-3-羧酰胺库在5位杂环取代基的平行合成。