Development of a novel ionic support and its application in the ionic liquid phase assisted synthesis of a potent antithrombotic
摘要:
The synthesis of ironic support 1 and its application in the preparation of a set of amides and sulforamides is described. The potential of 1 is further exemplified by its use in a one-pot multistep ionic liquid phase assisted synthesis of tirofiban analogue 2. (C) 2001 Elsevier Ltd. All rights reserved.
Base-Mediated Anti-Markovnikov Hydroamidation of Vinyl Arenes with Arylamides
作者:Ayushee、Monika Patel、Priyanka Meena、Kousar Jahan、Prasad V. Bharatam、Akhilesh K. Verma
DOI:10.1021/acs.orglett.0c04084
日期:2021.1.15
anti-Markovnikov hydroamidation of vinyl arenes with arylamides to furnish the arylethylbenzamides with excellent chemo- and regioselectivity. The reaction tolerates an extensive variety of functional groups and has been successfully extended with electronically varied handles, aminobenzamides, electron-rich/electron-deficient heterocyclic amides, and vinyl arenes to afford the hydroamidated products.
[EN] COMPOUNDS AND METHODS FOR TREATMENT OF CANCER AND MODULATION OF PROGRAMMED CELL DEATH FOR MELANOMA AND OTHER CANCER CELLS<br/>[FR] COMPOSES ET PROCEDES DE TRAITEMENT DU CANCER ET MODULATION DE LA MORT CELLULAIRE PROGRAMMEE DE MELANOMES ET D'AUTRES CELLULES CANCEREUSES
申请人:UNIV ALABAMA
公开号:WO2005044191A3
公开(公告)日:2005-10-20
Synthesis and Identification of Small Molecules that Potently Induce Apoptosis in Melanoma Cells through G1 Cell Cycle Arrest
作者:Robin S. Dothager、Karson S. Putt、Brittany J. Allen、Benjamin J. Leslie、Vitaliy Nesterenko、Paul J. Hergenrother
DOI:10.1021/ja042913p
日期:2005.6.1
Late-stage malignant melanoma is a cancer that is refractory to current chemotherapeutic treatments. The average survival time for patients with such a diagnosis is 6 months. In general, the vast majority of anticancer drugs operate through induction of cell cycle arrest and cell death in either the DNA synthesis (S) or mitosis (M) phase of the cell cycle. Unfortunately, the same mechanisms that melanocytes possess to protect cells from DNA damage often confer resistance to drugs that derive their toxicity from S or M phase arrest. Described herein is the synthesis of a combinatorial library of potential proapoptotic agents and the subsequent identification of a class of small molecules (triphenyl methylamides, TPMAs) that arrest the growth of melanoma cells in the G1 phase of the cell cycle. Several of these TPMAs are quite potent inducers of apoptotic death in melanoma cell lines (IC50 similar to 0.5 mu M), and importantly, some TPMAs are comparatively nontoxic to normal cells isolated from the bone marrow of healthy donors. Furthermore, the TPMAs were found to dramatically reduce the level of active nuclear factor kappa-B (NF kappa B) in the cell; NF kappa B is known to be constitutively active in melanoma, and this activity is critical for the proliferation of melanoma cells and their evasion of apoptosis. Compounds that reduce the level of NF kappa B and arrest cells in the G1 phase of the cell cycle can provide insights into the biology of melanoma and may be effective antimelanoma agents.
AMEBA: An acid sensitive aldehyde resin for solid phase synthesis
作者:Adam M. Fivush、Timothy M. Willson
DOI:10.1016/s0040-4039(97)01771-1
日期:1997.10
Oxidation of 4-(3-methoxy-4-hydroxymethylphenoxy)methyl polystyrene resin produced AMEBA resin 1, a novel acid sensitive aldehyde resin. Reductive amination of AMEBA resin generated resin bound amines which were derivatized as sulfonamides, amides, ureas, and carbamates. Cleavage of the resin under mild acidic conditions generated the derivatized amines in high purity and moderate yield. (C) 1997 Elsevier Science Ltd.
Enantioselective Synthesis of 1-Aryl-Substituted Tetrahydroisoquinolines Through Ru-Catalyzed Asymmetric Transfer Hydrogenation
A convenient and general asymmetric transferhydrogenation of a wide array of 1-aryl-3,4-dihydroisoquinoline derivatives using a [RuIICl(η6-benzene)TsDPEN] complex in combination with a 5:2 HCOOH–Et3N azeotropic mixture as a hydrogen source was developed. Under mild reaction conditions, the described catalytic transformation secured a practical synthetic access to the corresponding valuable chiral