我们报道了吗啉和哌嗪的光催化差向异构化,该差向异构化通过可逆氢原子转移(HAT)进行,并为编辑这些药物中常见的饱和氮杂环的立体化学构型提供了有效的策略。更稳定的吗啉和哌嗪异构体是从更容易合成但稳定性较差的立体异构体获得的,并且在取代模式和官能团相容性方面证明了广泛的范围。观察到的非对映体分布与密度泛函理论 (DFT) 计算确定的非对映体对的相对能量密切相关。包括发光猝灭、氘标记反应和可逆性测定在内的机理研究支持硫自由基介导的吗啉差向异构化 HAT 途径。对哌嗪差向异构化的研究表明,该机制更为复杂,并导致开发了用于N , N'-二烷基哌嗪高度立体选择性差向异构化的无硫醇条件,为此提出了以前未被认识的自由基链 HAT 机制。
含氮分子在烯烃侧链上的分子内环化是构建 N-杂环的有效策略,这在药物和材料等领域至关重要。然而,对于氮结构单元(包括以 N 为中心的自由基)来说,类似的分子间环化反应较少,并且尚未建立发散和模块化版本。在这里,我们报道了使用硫亚胺作为双功能N-自由基前体与烯烃进行环化反应,通过光氧化还原催化一步生成N-未保护的杂环。结构多样的硫亚胺可以一步合成,然后与烯烃结合,得到具有合成价值的五元、六元和七元杂环。通过试剂的双功能特性实现的自由基-极性交叉环化可以实现广泛而多样化的范围,这与所有其他基于 N 中心自由基的反应不同。与目前其他单一环化方法相比,硫亚胺的模块化合成允许 N-杂环产物具有更大的结构多样性。
Use of GAL3 receptor antagonists for the treatment of depression and/or anxiety and compounds useful in such methods
申请人:——
公开号:US20030078271A1
公开(公告)日:2003-04-24
This invention is directed to pyrimidine and indolone derivatives which are selective antagonists for the GAL3 receptor. The invention provides a pharmaceutical composition comprising a therapeutically effective amount of a compound of the invention and a pharmaceutically acceptable carrier. This invention also provides a pharmaceutical composition made by combining a therapeutically effective amount of a compound of the invention and a pharmaceutically acceptable carrier. This invention further provides a process for making a pharmaceutical composition comprising combining a therapeutically effective amount of a compound of the invention and a pharmaceutically acceptable carrier. This invention also provides a method of treating a subject suffering from depression and/or anxiety which comprises administering to the subject an amount of a compound of the invention effective to treat the subject's depression and/or anxiety. This invention also provides a method of treating depression and/or anxiety in a subject which comprises administering to the subject a composition comprising a pharmaceutically acceptable carrier and a therapeutically effective amount of a GAL3 receptor antagonist.
GAL3 antagonists for the treatment of neuropathic pain
申请人:——
公开号:US20040092570A1
公开(公告)日:2004-05-13
This invention is directed to pyrimidine and indolone derivatives which are selective antagonists for the GAL3 receptor and are useful for the treatment of neuropathic pain and other abnormalities. This invention also provides a method of treating a subject suffering from an abnormality which comprises administering to the subject an amount of a compound of the invention effective to treat the subject's abnormality. This invention also provides a method of treating an abnormality in a subject which comprises administering to the subject a composition comprising a pharmaceutically acceptable carrier and a therapeutically effective amount of a GAL3 receptor antagonist.
GAL3 receptor antagonists for the treatment of affective disorders
申请人:——
公开号:US20040110821A1
公开(公告)日:2004-06-10
This invention is directed to pyrimidine and indolone derivatives which are selective antagonists for the GAL3 receptor. This invention provides a method of treating a subject suffering from an affective disorder which comprises administering to the subject an amount of a compound of the invention effective to treat the subject's affective disorder. This invention also provides a method of treating an affective disorder in a subject which comprises administering to the subject a composition comprising a pharmaceutically acceptable carrier and a therapeutically effective amount of a GAL3 receptor antagonist. This invention further provides a process for making a pharmaceutical composition comprising combining a therapeutically effective amount of a compound of the invention and a pharmaceutically acceptable carrier.
Provided herein are compounds and prodrugs and methods of preparation of compounds and prodrugs that are capable of functioning as releasers and/or uptake inhibitors of one or more monoamine neurotransmitters, including dopamine, serotonin, and norepinephrine. Also provided are pharmaceutical compositions comprising one or more of these compounds or prodrugs, which may further comprise one or more additional therapeutic agents. Also provided are methods of treatment of various conditions that may be responsive to modification of monoamine neutrotransmitter levels, such as pre-obesity, obesity, addiction, and depression.