7339-87-9Relevant articles and documents
Oxidation of L-Tyrosine by Vanadium (V) in Presence of Sulphuric Acid
Sharma, Vijai K.,Sharma, K.,Payasi, Angad P.
, p. 1041 - 1046 (1986)
Oxidation of L-tyrosine with vanadium (V) in sulphuric acid medium at constant ionic strength is first order in oxidant and H+.The order in tyrosine varies from 1 to 0.A mechanism consistent with the kinetic results is proposed in which the rate determining step is the decomposition of the complex formed in the prior equilibrium. - Keywords: Mechanism; Oxidation; Tyrosine
Small-molecular boron drug and application thereof
-
Paragraph 0020-0025, (2021/07/24)
The invention discloses a small-molecular boron drug. The small-molecular boron drug has a structure as shown in a formula I that is described in the specification. In the formula I, R is any one selected from the group consisting of ortho-carborane, meta
Rapid biosynthesis of phenolic glycosides and their derivatives from biomass-derived hydroxycinnamates
Zhao, Mingtao,Hong, Xulin,Abdullah,Yao, Ruilian,Xiao, Yi
, p. 838 - 847 (2021/02/09)
Biomass-derived hydroxycinnamates (mainly includingp-coumaric acid and ferulic acid), which are natural sources of aromatic compounds, are highly underutilized resources. There is a need to upgrade them to make them economically feasible. Value-added phenolic glycosides and their derivatives, both belonging to a class of plant aromatic natural products, are widely used in the nutraceutical, pharmaceutical, and cosmetic industries. However, their complex aromatic structures make their efficient biosynthesis a challenging process. To overcome this issue, we created three novel synthetic cascades for the biosynthesis of phenolic glycosides (gastrodin, arbutin, and salidroside) and their derivatives (hydroquinone, tyrosol, hydroxytyrosol, and homovanillyl alcohol) fromp-coumaric acid and ferulic acid. Moreover, because the biomass-derived hydroxycinnamates directly provided aromatic units, the cascades enabled efficient biosynthesis. We achieved substantially high production rates (up to or above 100-fold enhancement) relative to the glucose-based biosynthesis. Given the ubiquity of the aromatic structure in natural products, the use of biomass-derived aromatics should facilitate the rapid biosynthesis of numerous aromatic natural products.
MASP-2 INHIBITORS AND METHODS OF USE
-
Paragraph 2124-2125, (2019/12/24)
The present disclosure provides, inter alia, compounds with MASP-2 inhibitory activity, compositions of such compounds and methods of making and using such compounds.