摘要:
The invention relates to a microporous material formed by oxygen, silicon, germanium, aluminum, boron, gallium, zirconium and/or titanium known as TIQ-6, to a method for preparing said material and to its applications as catalyst in oxidation reactions. The TIQ-6 preparation method is based on the synthesis of a gel containing titanium and/or zirconium, hydrothermal treatment thereof under controlled conditions and treatment of the resulting laminar material with an organic compound solution, preferably having a long hydrocarbonated chain containing a proton accepting group. This swollen material is subjected to a specific treatment involving agitation, ultrasound or any other method known in prior art with the purpose of obtaining a delaminated solid with a high outer surface. The invention also relates to a material having similar characteristics as that of TIQ-6 but additionally having organic groups anchored on the surface thereof and called METIQ-6, to a method for preparing the latter and to the utilization thereof as catalyst in oxidation reactions. The incorporation of organic species during synthesis of the material called METIQ-6 is carried out by means of a post-synthesis process on the TIQ-6 material.
摘要:
The present invention provides allylic disulfone of Chemical Formula 1, an important intermediate which can be used for syntheses of retinoids and carotenoids, a process for preparing the same, and a process for preparing retinoid compounds by using the said intermediate, and, in particular, a process for preparing retinoic acid of Chemical Formula 2 and alkyl retinoate of Chemical Formula 3. The process for preparing allylic disulfone compound of Chemical Formula 1 employs cyclo-geranyl sulfone, which reacts with C5 haloallylic sulfide to give rise to the chain-extended C15 thio-sulfone compound. The thio-sulfone compound is selectively oxidized to give allylic disulfone of Chemical Formula 1. The C15 disulfone compound reacts with C5 halo-acid or C5 halo-ester under the condition using excess base, which induces coupling and subsequent desulfonation reactions to give retinoic acid of Chemical Formula 2 or alkyl retinoate of Chemical Formula 3.
摘要:
The invention relates to a microporous material formed by oxygen, silicon, germanium, aluminum, boron, gallium, zirconium and/or titanium known as TIQ-6, to a method for preparing said material and to its applications as catalyst in oxidation reactions. The TIQ-6 preparation method is based on the synthesis of a gel containing titanium and/or zirconium, hydrothermal treatment thereof under controlled conditions and treatment of the resulting laminar material with an organic compound solution, preferably having a long hydrocarbonated chain containing a proton accepting group. This swollen material is subjected to a specific treatment involving agitation, ultrasound or any other method known in prior art with the purpose of obtaining a delaminated solid with a high outer surface. The invention also relates to a material having similar characteristics as that of TIQ-6 but additionally having organic groups anchored on the surface thereof and called METIQ-6, to a method for preparing the latter and to the utilization thereof as catalyst in oxidation reactions. The incorporation of organic species during synthesis of the material called METIQ-6 is carried out by means of a post-synthesis process on the TIQ-6 material.
摘要:
The present application provides methods and compounds of modulating Nrf2 pathway. Methods for treating cancer and neurodegenerative conditions are also provided.
摘要:
Small molecule compounds derived from α-sulfophenylacetic amide (SPAA) are provided as novel sulfonic acid based pTyr mimetics. These compounds effectively inhibit a variety of protein tyrosine phosphatases (PTPs), such as mPTPA, mPTPB, LMWPTP, and Laforin. Use of these compounds as pharmaceutical agents for treating diseases associated with abnormal protein tyrosine phosphatase activity is also provided.
摘要:
Aging of the human skin is caused primarily by the biochemical action of free radicals, peroxides and derived products. Lipid-soluble thioethers and dithioethers in cosmetic preparations inactivate the peroxides formed in the skin and thereby retard manifestations of aging.
摘要:
In one aspect, compounds and associated pharmaceutical compositions are described herein for the treatment of various fungal infections and/or other diseases. In some embodiments, for example, compounds of Formula (I) are described herein.
摘要:
The invention relates to the field of biological fungicides with a broad range of antifungal activity coming from plant extracts from the order of Brassicales or molecules revealing similar chemical structure. In particular, Applicants surprisingly provided a new usage of a combination of sulfonyl and sulfinyl containing aliphatic glucosinolates, their by-products and synthetic analogues as efficient antifungal compounds with broad spectrum of activity.
摘要:
(E)-Styryl benzylsulfones useful as antiproliferative agents, including, for example, anticancer agents, are provided according to formula I: wherein: R1 is selected from the group consisting of halogen, C1-C6 alkoxy, nitro, phosphonato, amino, sulfamyl, carboxy, acetoxy and dimethylamino (C2-C6 alkoxy); and R2 and R3 are independently selected from the group consisting of halogen, C1-C6 alkoxy, C1-C6 alkyl, nitro, cyano, hydroxy, phosphonato, amino, sulfamyl, carboxy, acetoxy, and dimethylamino (C2-C6 alkoxy); provided: R1 may not be halogen when R2 and R3 are both halogen; R2 may not be 2-halogen when R3 is 4-halogen; or a pharmaceutically acceptable salt thereof; or formula II: whrein: R4 is selected from the group consisting of C1-C6 alkoxy, phosphonato, amino, sulfamyl, carboxy, acetoxy and dimethylamino (C2-C6 alkoxy); R6 is selected from the group consisting of nitro, hydrogen, phosphonato, amino, sulfamyl, carboxy, acetoxy and dimethylamino (C2-C6 alkoxy); and R7 is selected from the group consisting of halogen, C1-C6 alkoxy, C1-C6 alkyl, nitro, cyano, hydroxy, phosphonato, amino, sulfamyl, carboxy, acetoxy, dimethylamino (C2-C6 alkoxy) and trifluoromethyl; provided R5 and R6 may not be hydrogen in the same compound; or a pharmaceutically acceptable salt thereof.