Model Studies on the Synthesis of Madangamine Alkaloids. Assembly of the Macrocyclic Rings
摘要:
Using simplified model derivatives, the assembly of the macrocyclic rings of madangamines, including the 13- and 14-membered D rings of madangamlnes C-E, the all-cis-triunsaturated 15-membered D ring of madangamine A, and the (Z,Z)-unsaturated 11-membered E ring common to madangamines A-E, has been studied.
DOI:
10.1021/ol301672y
作为产物:
描述:
dimethyl 2-(3-azidopropyl)propanedioate 以86%的产率得到
参考文献:
名称:
KHOUKHI, M.;VAULTIER, M.;CARRIE, R., TETRAHEDRON LETT., 1986, 27, N 9, 1031-1034
PROCESS FOR STRAIGHTENING KERATIN FIBRES WITH A HEATING MEANS AND DENATURING AGENTS
申请人:Philippe Michel
公开号:US20100028280A1
公开(公告)日:2010-02-04
The invention relates to a process for straightening keratin fibres, comprising: (i) a step in which a straightening composition containing at least two denaturing agents is applied to the keratin fibres, (ii) a step in which the temperature of the keratin fibres is raised, using a heating means, to a temperature of between 110 and 250° C.
Visible‐Light‐Mediated Stereoselective 1,2‐Iodoalkylation of Alkynes
作者:Jie‐Jie Liu、Ling Lan、Yu‐Ting Gao、Qi Liu、Liang Cheng、Dong Wang、Li Liu
DOI:10.1002/adsc.201801636
日期:2019.3.15
visible‐light‐mediated and photocatalyst/initiator‐free addition to alkynes has been developed. An atom transfer radical addition (ATRA) mechanistic afforded a broad scope of valuable iodo‐substituted alkenyl derivatives with high E/Z‐selectivities, which are versatile intermediates for the synthesis of various tri‐ and tetra‐ substituted alkenes.
[EN] SALTS OF PI3K INHIBITOR AND PROCESSES FOR THEIR PREPARATION<br/>[FR] SELS D'UN INHIBITEUR DE PI3K ET PROCÉDÉS DE PRÉPARATION DE CES SELS
申请人:INCYTE CORP
公开号:WO2016138363A1
公开(公告)日:2016-09-01
The present application provides processes for preparing (R)-4-(3-((S)-1-(4-amino-3-methyl-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl)-5-chloro-2-ethoxy-6-fluorophenyl)pyrrolidin-2-one, which is useful as an inhibitor phosphoinositide 3-kinase-delta (PI3Kδ), as well as a salt form and intermediates related thereto.
Method of inhibiting PTP 1B and /or T-cell PTP and/or other PTPases with an Asp residue at position 48
申请人:——
公开号:US20030064979A1
公开(公告)日:2003-04-03
This invention relates to oxalylamide inhibitors of Protein Tyrosine Phosphatase 1B (PTP1B) and/or T-cell Protein Tyrosine Phosphatase (TC-PTP) and/or Protein Tyrosine Phosphatases (PTPases) having an aspartic acid (Asp) in position 48 (PTP1B numbering, Chernoff et al,
Proc Natl Acad Sci USA
87: 2735-2789 (1989)) and a method of inhibiting such PTPases by exposing the enzyme to inhibitor compounds of formula 1
1
This invention also relates to (I) the design and selection of inhibitors, which bind to the active site of PTP1B and/or TC-PTP and/or PTPases having an aspartic acid (Asp) in position 48 (II) the synthesis of said inhibitors, methods for their preparation and (III) to compositions comprising the inhibitor compounds.
Method for straightening keratinous fibres using heating means and an amide
申请人:Malle Gérard
公开号:US10092490B2
公开(公告)日:2018-10-09
The invention concerns a method for straightening keratinous fibers including: (i) a step of applying on the keratinous fibers a hair straightening composition containing at least one cyclic or linear amide, (ii) a step of increasing the temperature of the keratinous fibers, using heating means, to a temperature ranging between 110 and 250° C.