ACCESS TO CHIRAL BISPHENOL (BPOL) LIGANDS THROUGH DESYMMETRIZING ASYMMETRIC ORTHO-SELECTIVE MONO-HALOGENATION
申请人:The Chinese University of Hong Kong
公开号:US20210300853A1
公开(公告)日:2021-09-30
The subject invention pertains to a method of halogenating phenols, yielding a range of halogenated phenols with enantiomeric ratio of up to 99.5:0.5. In certain embodiments, the subject invention pertains to a method of asymmetric halogenation of bisphenol, yielding a range of chiral bisphenol ligands. The novel chiral bisphenols are potent privileged catalyst cores that can be applied to the preparation of ligands for various catalytic asymmetric reactions. The catalyst library can easily be accessed because late-stage modification of the scaffold can readily be executed through cross-coupling of the halogen handles on the bisphenols.
Metabolism of phenytoin and covalent binding of reactive intermediates in activated human neutrophils
作者:Dennis C. Mays、Lew J. Pawluk、Glen Apseloff、W.Bruce Davis、Zhi-Wu She、Arthur L. Sagone、Nicholas Gerber
DOI:10.1016/0006-2952(95)00151-o
日期:1995.7
chelators desferrioxamine and diethylenetriaminepentaacetic acid had little or no effect on the metabolism of phenytoin by neutrophils, demonstrating that adventitious iron was not contributing via Fenton chemistry. In an .OH-generating system containing H2O2 and Fe2+ chelated with ADP, phenytoin was oxidized rapidly to unidentified polarproducts and to p-, m-, and o-HPPH (ratio 1.0:1.7:1.5, respectively)
Topical pharmaceutical composition containing phenytoin and a (co-) analgesic for the treatment of chronic pain
申请人:Topical Innovations B.V.
公开号:US11147799B2
公开(公告)日:2021-10-19
This disclosure relates to a pharmaceutical composition for topical use wherein the active pharmaceutical ingredient consists of the co-analgesic phenytoin and at least one further co-analgesic, and a method for producing the pharmaceutical composition. In addition, the disclosure relates to the pharmaceutical composition for use in the treatment of chronic pain.
Topical phenytoin for use in the treatment of peripheral neuropathic pain
申请人:Topical Innovations B.V.
公开号:US11285099B2
公开(公告)日:2022-03-29
The present disclosure relates to pharmaceutical compositions containing phenytoin or phenytoin sodium for use in topical pain relief. Use of the pharmaceutical composition of the disclosure reduces peripheral neuropathic pain. The topical pharmaceutical compositions of the disclosure containing phenytoin or phenytoin sodium, surprisingly reduce peripheral neuropathic pain considerably, especially and preferably in the conditions, characterized by a low to moderate grade of peripheral neurogenic inflammation, such as small fiber neuropathy, diabetic neuropathy, chronic idiopathic axonal polyneuropathy, post-herpetic neuralgia, trigeminus neuralgia, chemotherapy induced polyneuropathy, traumatic neuropathies, compression neuropathies, and infectious neuropathies in remission, according to the disclosure.