Novel N-H and N-alkylatedderivatives of meridianins have been synthesized as potential antitumor agents by a two-step conversion of N-tosyl-3-acetylindoles or N-alkyl-3-acetylindoles to the corresponding enaminones using DMF-DMA, with or without added pyrrolidine. Further cyclization with guanidine gave the corresponding 2-aminopyrimidines. The structures of the compounds, thus obtained, were proved
通过使用DMF-DMA将N-甲苯磺酰基-3-乙酰基吲哚或N-烷基-3-乙酰基吲哚经两步转化为相应的烯胺酮,合成了经络胺的新型N- H和N-烷基化衍生物作为潜在的抗肿瘤药。或不添加吡咯烷。用胍进一步环化得到相应的2-氨基嘧啶。由此获得的化合物的结构通过1 H和13 C NMR光谱,NOE实验和X射线分析证明。
3-CYCLOHEXENYL AND CYCLOHEXYL SUBSTITUTED INDOLE AND INDAZOLE COMPOUNDS AS RORgammaT INHIBITORS AND USES THEREOF
申请人:Merck Sharp & Dohme Corp.
公开号:US20150191434A1
公开(公告)日:2015-07-09
The present invention relates to compounds according to Formula I and pharmaceutically acceptable salts or solvates thereof. Such compounds can be used in the treatment of RORgammaT-mediated diseases or conditions.
Total Synthesis of (−)-Actinophyllic Acid Enabled by a Key Dual Ir/Amine-Catalyzed Allylation
作者:Xiao Liang、Tian-Yuan Zhang、Chun-Yan Meng、Xue-Dan Li、Kun Wei、Yu-Rong Yang
DOI:10.1021/acs.orglett.8b01861
日期:2018.8.3
asymmetric total synthesis of (−)-actinophyllic acid is described. This highlyefficient and enantioselectiveapproach allows the rapid installation of the four contiguous chiral centers (C16, C15, C20, and C19) by way of a dual Ir/amine catalytic allylation of 2-indolyl vinyl carbinol 6 and an aldol reaction of resultant chiral aldehyde 4a with 2-pyrrolidinone 5. The key indol-3-ylmethanamine moiety and
Transition-Metal-Free Access to Heteroaromatic-Fused 4-Tetralones by the Oxidative Ring Expansion of the Cyclobutanol Moiety
作者:Philipp Natho、Lewis A. T. Allen、Andrew J. P. White、Philip J. Parsons
DOI:10.1021/acs.joc.9b01290
日期:2019.8.2
Advances in the transition-metal-free cyclobutanol ringexpansion to 4-tetralones under N-bromosuccinimide mediation are described. We have expanded the scope of this ringexpansion methodology and investigated the effect substituents on the aromatic ring, and the cyclobutanol moiety, have on the outcome of the reaction. Limitations with certain substituents on the cyclobutanol moiety are also described
Synthesis of α-substituted indolylacetamide using acetonitriles as acetamide enolate equivalents through O-transfer reactions
作者:Takumi Abe、Kenta Noda、Daisuke Sawada
DOI:10.1039/d1cc02821a
日期:——
ammonium hemiaminals as O-transfer reagents and commercially available acetonitriles as a primary amide enolate precursor. The combination serves as an amide enolate equivalent, thereby providing one-pot access to α-substituted indolylacetamides. A broad substrate scope and good functional group tolerance as well as gram-scale synthesis make this protocol highly attractive. Mechanistic experiments suggest
我们引入了现成的铵半胺作为 O 转移试剂和市售的乙腈作为伯酰胺烯醇前体。该组合用作酰胺烯醇化物等价物,从而提供对α-取代的吲哚基乙酰胺的一锅法访问。广泛的底物范围和良好的官能团耐受性以及克级合成使该协议极具吸引力。机理实验表明,在无金属条件下,氰基被半胺的羟基捕获,并在途中形成所需的伯酰胺。