- Bio-based aromatic copoly(ether ester)s with enhanced toughness and degradability: Influence of insertion of phenoxy-ether linkage and eugenol-derived composition on properties
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Two series of renewable nipagin and eugenol-based copoly(ether ester)s, PDN11-xE1x and PDN11-xE2x (x = 0%, 10%, 20%, 30%, 40%, 50%), were prepared in the melt with 1,10-decanediol as a como
- Hu, Keling,Zhao, Dongping,Wu, Guolin,Ma, Jianbiao
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- Aromatic poly(ether ester)s derived from a naturally occurring building block nipagin and linear aliphatic α,ω-diols
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Nipagin, the methyl ester of p-hydroxybenzoic acid, which is present naturally in campanulaceae and ericaceous plants, was used to prepare poly(ether ester)s. In this study, two nipagin-based aromatic dimethyl esters were synthesized via one-step simple n
- Hu, Keling,Zhao, Dongping,Wu, Guolin,Ma, Jianbiao
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- Aryl alkyl ether compound as well as derivative, preparation method, pharmaceutical composition and application thereof
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The invention discloses an aryl alkyl ether compound as well as a derivative, a preparation method, a pharmaceutical composition and application thereof. The structure of the aryl alkyl ether compound is shown as a formula (I). The aryl alkyl ether compound derivative relates to a stereoisomer, a tautomer, a metabolite, a metabolic precursor, a prodrug, a solvate, a salt of the solvate, a crystal, a pharmaceutically acceptable salt or a mixture of the stereoisomer, the tautomer, the metabolite, the metabolic precursor, the prodrug and the solvate of the aryl alkyl ether compound. The aryl alkyl ether compound and the derivative thereof have a remarkable inhibition effect on indoleamine 2, 3-dioxygenase 1, and can be used for preparing a medicine for treating indoleamine 2, 3-dioxygenase 1 mediated immunosuppression related diseases, and the prepared medicine can exert the medicine effect at the molecular level and is wide in application.
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Paragraph 0093; 0094; 0095; 0096
(2021/05/12)
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- FUNCTIONALIZED PHENOLIC COMPOUNDS AND POLYMERS THEREFROM
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The present invention relates to compounds of formula I, which are functionalized phenolic compounds, and polymers formed from the same. Ar—[O—(X)p—R′]q??I Polymers formed from the functionalized phenolics are expected to have controllable degradation profiles, enabling them to release an active component over a desired time range. The polymers are also expected to be useful in a variety of medical applications.
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Page/Page column 14
(2009/07/17)
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- A simple method for the preparation of monomethyl esters of dicarboxylic acids by selective esterification of the nonconjugated carboxyl group in the presence of an aromatic or conjugated carboxyl group
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Various dicarboxylic acids have been converted selectively into monomethyl esters in which the nonconjugated carboxyl group is selectively esterified in the presence of an aromatic or conjugated carboxyl group at room temperature (~ 25-27°C) in methanol using a catalytic amount of thionyl chloride.
- Ram, Ram N.,Meher, Nabin Kumar
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p. 282 - 283
(2007/10/03)
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- Use of Phosphorus Pentoxide. Preparation of Half-esters through Selective Esterification
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Methyl 2-,3-,4-carboxyphenylacetate and methyl 2-,3-,4-carboxyphenoxyacetate have been prepared through selective esterification of the aliphatic carboxylic acid function of the corresponding dicarboxylic acids using a mixture of phosphorus pentoxide (1 part), anhydrous copper sulphate (5 parts) and anhydrous sodium sulphate (5 parts).All the isomeric half-esters have been prepared through partial hydrolysis of the corresponding dimethylesters.
- Banerjee, Amalendu,Adak, Mohini Mohan,Das, Sankar,Banerjee, Santa,Sengupta, Saumitra
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