摘要:
A 1,3,2-dioxathiolane oxide derivative of general formula (I) wherein x represents -S(O)- or -S(O)2-; R1 represents hydrogen, alkali metal atom, benzyl or lower alkyl; R2 represents lower alkyl which may be substituted by methylthio, or benzyl; and R?3 and R4¿ may be the same or different from each other and each represents hydrogen, C¿1? to C10 alkyl, guanidyl-substituted lower alkyl, C3 to C6 cycloalkyl, phenyl, benzyl or phenoethyl, or R?3 and R4¿ are combined together to represent alkylene.
摘要翻译:通式(I)的1,3,2-二氧硫杂环戊烷氧化物衍生物,其中x表示-S(O) - 或-S(O)2 - ; R 1表示氢,碱金属原子,苄基或低级烷基; R 2表示可被甲硫基取代的低级烷基或苄基; R 3和R 4可以相同或不同,各自代表氢,C 1至C 10烷基,胍基取代的低级烷基,C 3至C 6环烷基,苯基,苄基或苯乙基或R 3 >和R 4结合在一起代表亚烷基。
摘要:
This invention relates to a new one-step process for preparation of novel N-(acyloxy-alkoxy) carbonyl derivatives useful as bioreversible prodrug moieties for drugs having a primary or secondary amine function thereon.
摘要:
The invention provides herbicidally-active 2,3-dihydro-5-cyano-benzofurans of the formula: (wherein: R' and R 2 together represent =O or R' represents hydrogen and R 2 represents hydrogen, hydroxy, alkoxy, acyloxy, alkoxycarbonyloxy, alkylthiocarbonyloxy, halogen, isothiocyanato, amino, alkylamino, dialkylamino, arylamino, acylamino, alkoxycarbonylamino, alkyhhiocarbonylamino. N-bonded heterocyclyl, cyano or alkylthio; R 3 and R 4 together represent alkylene or each represent hydrogen or alkyl; and R 5 , R 6 and R 7 , which may be the same or different, each represent hydrogen, halogen, alkyl, alkoxy, acyl or cyano), processes for their preparation and herbicidal compositions containing them.
摘要:
The present invention refers to an attractive route for the conversion of ethane to ethylene glycol. In particular, the present invention includes a process for the production of ethylene glycol from shale gas.
摘要:
An additive, an electrolyte for a rechargeable lithium battery, and a rechargeable lithium battery, the additive being represented by Chemical Formula 1:
摘要:
The present invention relates to novel cyclic sulphates of (poly)glycerol, particularly to the novel compound of 4-(hydroxymethyl)-1,3,2-dioxathiolane-2,2-dioxide. The present invention also relates to the preparation process of the cyclic sulphate compounds, and to the use thereof as an intermediate to prepare green surfactants containing sulphate groups.
摘要:
The invention emcompasses polyunsaturated fatty acid monoglycerides and derivatives thereof, having the formulae (I), (II), (III) and (IV), pharmaceutically acceptable salts thereof, compositions thereof and processes of preparing said compounds. These compounds can be useful as cancer chemopreventive agents, cancer treating agents, or radioenhencers for radiotherapy of cancer, or for inhibiting tumor growth or cell proliferation, or reducing tumor growth.
摘要:
The invention relates to chiral compounds of formula (I), methods of their preparation, and to their use in optical, electrooptical, electronic, semiconducting or luminescent components or devices.