51692-94-5

Upstream product

• 92572-57-1 2-((2R,4R)-2-tert-butyl-4-benzyl-5-oxo-1,3-dioxolan-4-yl)acetic acid 
• 1454585-35-3 1-(4-β-D-glucopyranosyloxybenzyl) 4-methyl (2R)-2-benzylmalate 
• 1425047-07-9 1,4-bis(4′,4?-β-glucopyranosyloxybenzyl)-(R)-2-benzylmalate 
• 1425047-04-6 4-(4?-β-glucopyranosyloxybenzyl)-(R)-2-benzylmalate 
• 143572-66-1 cronupapine 
• 26581-12-4 dimethyl (2R)-2-benzyl-2-hydroxysuccinate 

Relevant academic research and scientific papers

Aromatic constituents of Cymbidium Great Flower Marie Laurencin and their antioxidative activity

Two novel aromatic glucosides, named marylaurecinosides B (1) and C (2), were isolated from Cymbidium Great Flower Marie Laurencin, together with six known aromatic compounds (3-8). These structures were determined on the basis of NMR experiments as well as chemical evidence. All of the isolated compounds (1-8) were tested for antioxidative activity using a superoxide dismutase-like assay.

Two novel aromatic glucosides, marylaurencinosides D and E, from the fresh flowers of Cymbidium Great Flower 'Marylaurencin'

Two novel aromatic glucosides, named marylaurencinosides D (1) and E (2), were isolated from the fresh flowers of Cymbidium Great Flower 'Marylaurencin'. In addition, eight known aromatic compounds (3-10) were isolated. These structures were determined on

Phenanthrenes, 9,10-dihydrophenanthrenes, bibenzyls with their derivatives, and malate or tartrate benzyl ester glucosides from tubers of Cremastra appendiculata

Eleven previously unknown compounds and 23 known compounds including 20 phenanthrene or 910- dihydrophenanthrene derivatives five bibenzyls, seven malate or tartrate benzyl ester glucosides, adenosine and gastrodin were isolated from tubers of Cremastra a

Glucopyranosyloxybenzyl derivatives of (R)-2-benzylmalic acid and (R)-eucomic acid, and an aromatic glucoside from the pseudobulbs of Grammatophyllum speciosum

Three new glucosyloxybenzyl derivatives of (R)-2-benzylmalic acid and of (R)-eucomic acid, grammatophyllosides A-C, and a new phenolic glucoside, grammatophylloside D, were isolated from the pseudobulbs of Grammatophyllum speciosum along with cronupapine, vandateroside II, gastodin, vanilloloside, orcinol glucoside, and isovitexin. The structure elucidations of these compounds were based on analyses of physical and spectroscopic data, as well as chemical evidence.

Enantioselective synthesis of α-alkylmalates as the pharmacophoric group of several natural alkaloids and glycosides

A general enantioselective synthesis of α-alkylmalates found in Cephalotaxus and Orchidaceae species is described. This preparation is based upon Seebach's procedure for the alkylation of D-malic acid with self-regeneration of stereogenic centers. Reactio

A facile method for synthesis of (R)-(-)- and (S)-(+)-homocitric acid lactones and related α-hydroxy dicarboxylic acids from D- or L-malic acid

We report here a simple and convenient route for the stereoselective synthesis of (R)-(-)- and (S)-(+)-homocitric acid lactones, which play very important roles in biochemistry. The method involves only three steps, starting from the readily available met

Ester-type cephalotaxus alkaloids from Cephalotaxus harringtonia var. Drupacea

Three alkaloids, neoharringtonine, homoneoharringtonine and 3'S- hydroxyneoharringtonine, were isolated from the leaves and stems of Cephalotaxus harringtonia var. drupacea. Their structures were established by spectroscopic methods, including two-dimensional NMR and CD spectra, and their antileukaemic activity was evaluated using P-388 leukaemia cells.