A new enantioselective approach to the core structure of hypoxia selective prodrugs related to the duocarmycins
摘要:
The indoline scaffold of hypoxia selective prodrugs of DNA-alkylating agents related to the duocarmycin natural products was synthesized via an enantioselective Friedel-Crafts alkylation. Easily accessible starting materials and good stereoselectivity in the alkylation step provide an enantioselective synthesis of the DNA-alkylating subunit. (C) 2011 Elsevier Ltd. All rights reserved.
Synthesis of 2-Nitroalcohols by Regioselective Ring Opening of Epoxides with MgSO4/MeOH/NaNO2 System: A Short Synthesis of Immunosuppressive Agent FTY-720
γ-lactams, is presented. (+)-(R)-3-Hydroxy-3-phenylpropanoic acid (20) and its ethyl ester 25 were prepared from (+)-L-mandelic acid (21). Condensation of 20 with pivalaldehyde furnished the novel enantiomerically pure 1,3-dioxan-4-one 17, the absolute configuration of which was established by X-ray crystal-structure analysis. Treating the lithium enolate of 17 with the nitro alkene 18 led, in a Michael-type
Lucet, Denis; Sabelle, Stephane; Kostelitz, Olivier, European Journal of Organic Chemistry, 1999, # 10, p. 2583 - 2591
作者:Lucet, Denis、Sabelle, Stephane、Kostelitz, Olivier、Le Gall, Thierry、Mioskowski, Charles
DOI:——
日期:——
Chandler, Malcolm; Conroy, Richard; Cooper, Anthony W. J., Journal of the Chemical Society. Perkin transactions I, 1995, # 9, p. 1189 - 1198
作者:Chandler, Malcolm、Conroy, Richard、Cooper, Anthony W. J.、Lamont, R. Brian、Scicinski, Jan J.、et al.
DOI:——
日期:——
A new enantioselective approach to the core structure of hypoxia selective prodrugs related to the duocarmycins
作者:Daniel M. Heinrich、Jean-Jacques Youte、William A. Denny、Moana Tercel
DOI:10.1016/j.tetlet.2011.10.105
日期:2011.12
The indoline scaffold of hypoxia selective prodrugs of DNA-alkylating agents related to the duocarmycin natural products was synthesized via an enantioselective Friedel-Crafts alkylation. Easily accessible starting materials and good stereoselectivity in the alkylation step provide an enantioselective synthesis of the DNA-alkylating subunit. (C) 2011 Elsevier Ltd. All rights reserved.
Synthesis of 2-Nitroalcohols by Regioselective Ring Opening of Epoxides with MgSO4/MeOH/NaNO2 System: A Short Synthesis of Immunosuppressive Agent FTY-720
作者:Biswajit Kalita、Nabin C. Barua、Maitreyee (Sarma) Bezbarua、Ghanashyam Bez
DOI:10.1055/s-2001-16776
日期:——
It has been demonstrated that a variety of epoxides can easily be opened with a system consisting of MgSO4/MeOH/NaNO2 giving the corresponding 2-nitroalcohols in excellent yields. This strategy has been applied to achieve a short synthesis of Immunosuppressive Agent FTY-720.