蒜氨酸 在
water extract of garlic 作用下,
以
水 为溶剂,
以99%的产率得到大蒜素
参考文献:
名称:
A Tissue Homogenate Method To Prepare Gram-Scale Allium Thiosulfinates and Their Disulfide Conjugates with Cysteine and Glutathione
摘要:
The health benefits of Allium vegetables are widely attributed to the enzyme-derived organosulfur compounds called thiosulfinates (TS). However, the lack of a suitable method to prepare TS in good yields has hampered the evaluation of their biological activities. This paper describe a simple enzymatic method using Allium tissue homogenates as a reaction system to prepare gram-scale TS, including those enriched in 1-propenyl groups, which are particularly difficult to obtain. This method is simple, easy to scale up, and requires no column purification step, making it suitable for practical large-scale production of Allium TS. The prepared TS were further utilized to prepare the disulfide conjugates with cysteine and glutathione (CySSR and GSSR, R = methyl, ethyl, propyl, 1-propenyl, and allyl), which are the presumptive metabolites of TS. Among all of the Allium CySSR and GSSR conjugates, the newly prepared glutathione conjugate with 1-propenyl TS, GSSPe, showed the most potent effect to induce quinone reductase (QR, a representative phase II enzyme) in murine hepatoma cells (Hepa 1c1c7) and inhibit nitric oxide (NO) production in lipopolysaccharide (LPS)-stimulated macrophage cells (RAW 264.7).
1H-pyrrole-2,4-dicarbonyl-derivatives and their use as flavoring agents
申请人:IMAX Discovery GmbH
公开号:EP2832233A1
公开(公告)日:2015-02-04
The present invention primarily relates to 1H-pyrrole-2,4-dicarbonyl-derivatives of Formula (I) wherein R1, R2, R3, Z. Z' and J are as defined in the description, to mixtures thereof and to the use thereof as flavoring agents. The compounds in accordance with the present invention are suitable for producing, imparting, or intensifying an umami flavor. The invention further relates to flavoring mixtures, compositions for oral consumption as well as ready-to-eat, ready-to-use and semifinished products, comprising an effective amount of the compound of Formula (I) or of a mixture of compounds of Formula (I) and to specific methods for producing, imparting, modifying and/or intensifying specific flavor impressions.
Imidazo[1,2-a]pyridine-ylmethyl-derivatives and their use as flavoring agents
申请人:IMAX Discovery GmbH
公开号:EP2832234A1
公开(公告)日:2015-02-04
The present invention primarily relates to imidazo[1,2-a]pyridine-ylmethyl-derivatives of Formula (I) wherein R1, R2, X, W e J are as defined in the description, to mixtures thereof and to the use thereof as flavoring agents. The compounds in accordance with the present invention are suitable for producing, imparting, or intensifying an umami flavor. The invention further relates to flavoring mixtures, compositions for oral consumption as well as ready-to-eat, ready-to-use and semifinished products, comprising an effective amount of the compound of Formula (I) and to specific methods for producing, imparting, modifying and/or intensifying specific flavor impressions.
Photosensitive compounds for use in a method of treating a disease or condition are described. The photosensitive compounds have the formula R—Y, wherein R is a ruthenium complex and Y is at least one sulphur-containing photoreleasable group, and the compounds comprise at least one ruthenium-sulphur bond; or a pharmaceutically acceptable salt, solvate, ester or amide, such that upon influence of visible or near infra-red light (400-1400 nm) in vivo, said at least one ruthenium-sulphur bond is broken, thereby generating a pharmacologically active compound.
A composition for preventing malaria infection including a protease inhibitor. A pharmaceutical composition for preventing malaria infection including a protease inhibitor and a pharmaceutical carrier. A method of malaria infection prophylaxis including the step of administering an effective amount of the composition of the present invention. A method of malaria prophylaxis by inhibiting circumsporozoite protein processing or by inhibiting a protease of a sporozoite. Methods of preventing sporozoite cell invasion or preventing circumsporozoite processing.
[EN] DIALLYLDISULPHIDE COMPOUNDS HAVING ANTILIPIDEMIC AND ANTIOXIDANT ACTIVITY<br/>[FR] COMPOSES DE DIALLYLDISULFURE PRESENTANT UNE ACTIVITE ANTILIPIDEMIQUE ET ANTIOXYDANTE
申请人:DEPT OF SCIENCE AND TECHNOLOGY
公开号:WO2004039771A1
公开(公告)日:2004-05-13
The present invention relates to a novel diallyldisulphide derivative having formula I as shown herebelow and their pharmaceutically acceptable salts; R-CH = CH - CH2-S-S-CH2-CH = CH-R (Formula I)wherein R=C6HnXp[when n = 3 to 5, p = 2 to 0; X=H, Cl, Br, F, CF3, CH3, CN, COOH, NO2, NH2, OH, OCmH2m+1(m = 1 to 8)]