Catalytic Asymmetric Conjugate Addition of Nitroalkanes to Cycloalkenones
作者:Stephen Hanessian、Vinh Pham
DOI:10.1021/ol000170g
日期:2000.9.1
Nitroalkanes add to cyclic and acyclic enones in an enantioselective manner in the presence of catalytic quantities of L-proline and trans-2,5-dimethylpiperazine as excess additive.
A convenient solvent-free synthesis of γ-nitroketones and γ-nitroesters based on the reaction of nitroalkanes with α,β-unsaturated carbonyl compounds in the ultrasonically activated heterogeneous catalytic system 1-butyl-3-methylimidazolium tetra-fluoroborate ([bmim][BF4])/K2CO3 has been developed. The system retained its catalytic activity over three reaction cycles.
Preparation de pyrrolines N-oxydes, pyrrolines et pyrrolidines par reduction electrochimique de γ-nitrocetones
作者:M. Cariou、R. Hazard、M. Jubault、A. Tallec
DOI:10.1016/s0040-4039(01)82038-4
日期:1981.1
Judiciously selected conditions of controlled potential electrolysis, at a mercury cathode in aqueous organic media, of γ-nitroketones result in quantitative yields of 1-pyrroline 1-oxides, pyrrolines or pyrrolidines.
The present disclosure provides compounds that include hydroxylamines of formula I or II, pharmaceutical compositions, and methods for their use. The methods utilize hydroxylamine compounds and/or their pharmaceutical compositions for the treatment of angiogenesis, hepatitis, complement-mediated pathologies, drusen-mediated pathologies, macular degeneration and certain other ophthalmic conditions, inflammation, arthritis, and related diseases and for the inhibition of complement activation.
The present disclosure provides compounds that include hydroxylamines of formula I or II, pharmaceutical compositions, and methods for their use. The methods utilize hydroxylamine compounds and/or their pharmaceutical compositions for the treatment of angiogenesis, hepatitis, complement-mediated pathologies, drusen-mediated pathologies, macular degeneration and certain other ophthalmic conditions, inflammation, arthritis, and related diseases and for the inhibition of complement activation.
本公开提供了包括式 I 或式 II 的羟胺化合物、药物组合物及其使用方法。这些方法利用羟胺化合物和/或其药物组合物治疗血管生成、肝炎、补体介导的病变、褐斑介导的病变、黄斑变性和某些其他眼科疾病、炎症、关节炎和相关疾病以及抑制补体活化。