Antitumor agents 287. Substituted 4-amino-2H-pyran-2-one (APO) analogs reveal a new scaffold from neo-tanshinlactone with in vitro anticancer activity
摘要:
4-Amino-2H-benzo[h] chromen-2-one (ABO) and 4-amino-7,8,9,10-tetrahydro-2H-benzo[h] chromen-2-one (ATBO) analogs were found to be significant in vitro anticancer agents in our previous research. Our continuing study has now discovered a new simplified (monocyclic rather than tricyclic) class of cytotoxic agents, 4-amino-2H-pyran-2-one (APO) analogs. By incorporating various substituents on the pyranone ring, we have established preliminary structure-activity relationships (SAR). Analogs 19, 20, 23, and 26-30 displayed significant tumor cell growth inhibitory activity in vitro. The most active compound 27 exhibited ED50 values of 0.059-0.090 mu M. (C) 2011 Elsevier Ltd. All rights reserved.
A Novel One-Pot, Two-Step Reaction for the Synthesis of Indenopyrrolo[3,2-c]pyridinone Derivatives with a Recyclable Catalyst
作者:Furen Zhang、Chunmei Li、Chenze Qi
DOI:10.1055/s-0037-1609655
日期:2018.12
An efficient strategy was developed for the synthesis of indenopyrrolopyridinone derivatives from 4-hydroxy-6-methyl-2H-pyran-2-one, an amine, and 2,2-dihydroxy-1H-indene-1,3(2H)-dione by a one-pot, two-step, four-component process. The one-pot reaction gives various substituted indenopyrrolopyridinones in good yields and uses a solid acid as a recyclable catalyst in water. This procedure has the advantages
Thus far, domino-based reactions have received a great deal of attention as a step-and atom-economic route toward the synthesis of a plethora of heterocyclic molecules. In this work, we disclose a catalyst-free domino procedure for rapid synthesis of 3-substituted 6-methyl-1,2-diarylpyrano[4,3-b]pyrrol-4(1H)-one compound in water at 80°C, accompanied by multiple C-H/C-O bond cleavage and C-C and C-N
到目前为止,基于多米诺骨牌的反应作为合成大量杂环分子的一步和原子经济路线受到了极大的关注。在这项工作中,我们公开了一种无催化剂的多米诺程序,用于在 80° 的水中快速合成 3-取代的 6-甲基-1,2-二芳基吡喃[4,3- b ]吡咯-4(1 H )-一种化合物C,伴随着多个 CH/CO 键的断裂和 CC 和 CN 键的形成。该方法具有反应条件温和、分离方便、官能团耐受性高、起始原料易得等特点,为吡喃并[4,3-b]pyrrol-4(的设计合成提供了一种绿色高效的策略。 1 H )-one 通过多米诺反应衍生。
A highly efficient [3+2] cyclization between 4-aminopyridinones and acenaphthenequinone: Access to novel acenaph-tho[1′,2':4,5]pyrrolo[3,2-c]pyridin-11-ones
and metal-free access to poly-substituted acenaphtho[1′,2':4,5]pyrrolo[3,2-c]pyridin-11-one and its analogs was established through a simple one-pot reaction using enaminones and acenaphthylene-1,2-dione as basic substrates. The reaction allows the formation of C–N and C–C bonds accompanied by multiple bond cleavage in the presence of acetic acid. The approach features atomic economy, broad substrate
通过简单的一锅反应,使用烯胺酮和苊-1,2-二酮作为基本底物。该反应允许形成 C-N 和 C-C 键,并在乙酸存在下伴随多重键断裂。该方法具有原子经济性、广泛的底物范围、高效且无金属的反应条件、廉价且易得的起始材料以及易于操作的特点,使得该策略极具吸引力。重要的是,带有羟基取代基的新型苊并[1',2':4,5]吡咯并[3,2- c ]吡啶-11-酮可以进一步功能化,从而获得分子的复杂性和多样性。