6149-50-4Relevant articles and documents
Synthesis method 2- hydroxyl carboxylic ester (by machine translation)
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Paragraph 0052; 0054; 0055; 0058-0060, (2020/05/05)
The method, is simple 2 - energy consumption, energy consumption is low, the production :(1) of waste water can be greatly reduced, the yield of the target product is high 2 - and the production cost ;(2) is greatly reduced (1). 2 - The method comprises the following steps, preparing 2 - hydroxycarboxylate, with an acid ;(3) by a byproduct ammonium salt (2) in step, and filtering the excess acid, to remove the byproduct ammonium salt, to obtain 2 - hydroxyl carboxylic acid ester product, by esterification reaction in step (, and filtering to remove 2 - the excess, alcohol), from, the reaction, solution obtained by the reaction solution; of the catalyst under the, action of, a catalyst, to obtain the product of the compound. (by machine translation)
Anesthetic compounds and related methods of use
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, (2015/11/09)
Provided herein are compounds according to formula (I): Provided herein is also a pharmaceutical composition comprising a compound according to formula (I) and a pharmaceutically acceptable carrier, and a method for providing anesthesia in a subject by administering such a pharmaceutical composition.
Method for the efficient synthesis of highly-substituted oxetan- and azetidin-, dihydrofuran- and pyrrolidin-3-ones and its application to the synthesis of (±)-pseudodeflectusin
Maegawa, Tomohiro,Otake, Kazuki,Hirosawa, Keiichi,Goto, Akihiro,Fujioka, Hiromichi
, p. 4798 - 4801 (2013/01/15)
Highly substituted four- and five-membered heterocycles were prepared starting with O,P- and N,P-acetals by using a one-pot method involving base induced cyclization and a Horner-Wadsworth-Emmons (HWE) olefination reaction. Divergent synthesis of various heterocycles was achieved by using this method and transformations of the alkenyl group in the products of these processes were exemplified. Finally, a short and efficient synthesis of (±)- pseudodeflectusin based on the new methodology was achieved.