121289-23-4Relevant articles and documents
Compound as well as preparation method and medical application thereof
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, (2020/02/14)
The invention provides a compound as well as a preparation method and medical application thereof, the compound has a structure as shown in a general formula (I), and can also be a tautomer, a mesomer, a raceme, an enantiomer, a diastereoisomer, or a mixture form thereof, or a pharmaceutically acceptable salt thereof. According to the compound with the structure as shown in the general formula (I)provided by the invention, a specific main chain structure and a corresponding substituent group are selected, so that the obtained compound can be used as an arginase inhibitor, is relatively high in activity, and has a potential treatment prospect in various diseases.
Substrate specificity of tuliposide-converting enzyme, a unique non-ester-hydrolyzing carboxylesterase in tulip: Effects of the alcohol moiety of substrate on the enzyme activity
Kato, Yasuo,Futanaga, Takashi,Nomura, Taiji
supporting information, p. 664 - 667 (2019/01/04)
6-Tuliposides A (PosA) and B (PosB) are glucose esters accumulated in tulip (Tulipa gesneriana) as major defensive secondary metabolites. Pos-converting enzymes (TgTCEs), which we discovered previously from tulip, catalyze the conversion reactions of PosA
Enzyme-mediated enantioselective hydrolysis of 1,2-diol monotosylate derivatives bearing an unsaturated substituent
Matsumoto,Oohana,Hashimoto,Usuda,Shimoda,Ohshima,Suzuki,Togawa
supporting information, p. 3981 - 3988 (2018/06/15)
We have succeeded in the easy preparation of optically active 1,2-diol monotosylates bearing an unsaturated substituent via enzymatic hydrolysis. Lipase PS quickly catalyzes the hydrolyses of 2-acetoxybut-3-enyl tosylate, which has a double bond, and 2-acetoxybut-3-ynyl tosylate, which has a triple bond, with excellent enantioselectivity to afford the corresponding optically active compounds. The reaction is also applicable to acetates with a longer chain, which has a double bond at the terminus. To demonstrate the applicability of this method, enantiomerically pure (R)-massoialactone, a natural coconut flavor, has been synthesized from racemic 2-acetoxypent-4-enyl tosylate in several steps. Furthermore, the enzyme can recognize the stereochemistry of olefins, and the (Z)-alkenyl structure is more suitable for the enantioselective hydrolysis than the (E)-isomer.