Palladium-Catalyzed Intramolecular C−O Bond Formation
摘要:
A number of oxygen heterocycles were synthesized using the palladium-catalyzed intramolecular etherification of aryl halides by employing di-tert-butylphosphinobiaryl ligands. The reaction proceeds under mild conditions using weak bases such as Cs2CO3 or K3PO4. A variety of functional groups are tolerated in the reaction. and enantioenriched alcohols can be coupled without erosion of optical purity. The mildness of the reaction conditions allows for the use of polyfunctionalized substrates. This method was used as the key step in the synthesis of MKC-242, an antidepressant currently in clinical trials. The synthesis of MKC-242 was achieved in 40% overall yield from commercially available sesamol and acrylonitrile,
Optically active alkylenedioxybenzene derivatives and their use in
申请人:Mitsubishi Kasei Corporation
公开号:US05168099A1
公开(公告)日:1992-12-01
Optically active alkylenedioxybenzene derivatives of the formula: ##STR1## wherein m is an integer of 2-5, and n is an integer of 1-3, and acid addition salts thereof. A pharmaceutical composition containing a compound (I) or racemate, and a method of treating anxiety in a warm-blooded animal by administering the above compound (I) to said animal are also provided.
[EN] ENANTIOMERIC ENTACTOGEN COMPOSITIONS AND METHODS OF THEIR USE<br/>[FR] COMPOSITIONS ENTACTOGÈNES ÉNANTIOMÈRES ET LEURS MÉTHODES D'UTILISATION
申请人:ARCADIA MEDICINE INC
公开号:WO2022256720A2
公开(公告)日:2022-12-08
Provided are enantiomers of MDMA, such as R-MDMA and S-MDMA, and non-racemic mixtures thereof. In some embodiments, the provided mixtures comprise R-MDMA in enantiomeric excess. In other aspects, provided are methods of making such enantiomers and non-racemic mixtures, compositions thereof, and methods of using the same. In some aspects, features of the provided mixtures, compositions, and methods include improved pharmacokinetics, reduced toxicity, such as neurotoxicity, and a reduced potential for abuse. In some embodiments, improved pharmacokinetics include a reduced duration of action. In some embodiments, reduced toxicity and abuse potential result from distinct binding profiles compared to racemic MDMA, R-MDMA, or S-MDMA.
Use of 5-HTiA receptor ligands for the treatment of glaucoma
申请人:MITSUBISHI CHEMICAL CORPORATION
公开号:EP0771563A2
公开(公告)日:1997-05-07
This invention is aimed at providing a novel medicine for oculopathy, which has as an active component thereof a 5-HT1A receptor ligand such as, for example, an alkylene dioxybenzene derivative represented by the following formula (I)
(wherein m represents an integer in the range of 2 - 5 and n an integer in the range of 1 - 3), a racemate thereof, or an acid added salt thereof.
Use of an alkylenedioxybenzene derivative for the treatment of circadian rythm sleep disorder
申请人:MITSUBISHI CHEMICAL CORPORATION
公开号:EP0884049A1
公开(公告)日:1998-12-16
A preventive and/or therapeutic medicament for circadian rhythm sleep disorders such as jet lag syndrome which comprises as an active ingredient an alkylenedioxybenzene derivative represented by the following formula (I) wherein m represent an integer of from 2 to 5, and n represents an integer of from 1 to 3, such as 5-[3-[(2S)-(1,4-benzodioxan-2-yl-methyl)amino]propoxy]-1,3-benzodioxol, or a pharmaceutically acceptable salt thereof.