摘要:
The present invention relates to a method for the detection of a lipid comprising reacting an alkyne-modified lipid derivative and an azido-modified coumarin compound, purifying the resulting compound using chromatography and detecting the reaction product. In a further aspect the present invention provides new alkyne lipid derivatives, new methods of alkyne lipid synthesis, new uses of such compounds and new methods employing these compounds.
摘要:
The invention is to a process for producing an acrylate product. The process includes the steps of contacting an alkanoic acid and an alkylenating agent over a catalyst composition under conditions effective to produce the acrylate product. The catalyst composition comprises vanadium, titanium and tungsten. Preferably, the catalyst comprises vanadium to tungsten at a molar ratio of at least 0.02:1, in an active phase.
摘要:
본 발명은 하기 화학식 1로 표시되는 16-아세틸-9,17-옥타데카디엔-12,14-디노익산(16-acetyl-9,17-octadecadiene-12,14-diynoic acid) 화합물 또는 이의 약학적으로 허용가능한 염, 상기 화합물의 제조방법, 상기 화합물 또는 이의 약학적으로 허용가능한 염을 포함하는 골 질환의 예방 또는 치료용 약학적 조성물, 골 질환의 예방 또는 개선용 의약외품 조성물, 건강기능식품 조성물, 화장료 조성물 및 상기 약학적 조성물을 골 질환 의심개체에 투여하는 단계를 포함하는 인간을 제외한 동물의 골 질환 치료 방법에 관한 것이다. 본 발명에 따른 화합물은 골 질환의 예방, 치료 또는 개선용으로 유용하게 사용할 수 있으며, 천연물 유래의 화합물로서 합성 의약품에 비하여 독성이나 기타 부작용의 염려가 없는 안전한 치료제를 제공할 수 있다. 또한, 신규 화합물을 제공하며, 이는 골 질환 치료에 효과가 있는 것으로서 새로운 골 질환의 치료제로 이용될 수 있다.
摘要:
The present invention relates to derivatives of known active pharmaceutical compounds. These derivatives are differentiated from the parent active compound by virtue of being redox derivatives of the active compound. This means that one or more of the functional groups in the active compound has been converted to another group in one or more reactions which may be considered to represent a change of oxidation state. We refer to these compounds generally as redox derivatives. The derivatives of the invention may be related to the original parent active pharmaceutical compound by only a single step transformation, or may be related via several synthetic steps including one or more changes of oxidation state. In certain cases, the functional group obtained after two or more transformations may be in the same oxidation state as the parent active compound (and we include these compounds in our definition of redox derivatives). In other cases, the oxidation state of the derivative of the invention may be regarded as being different from that of the parent compound. In many cases, the compounds of the invention have inherent therapeutic activity on their own account. In some cases, this activity relative to the same target or targets of the parent compound is as good as or better than the activity which the parent compound has against the target or targets.
摘要:
A method of determining the optimal yield of a target compound comprises: (a) determining the initial composition of a mixture of compounds containing the target compound; (b) dissolving the mixture in a solvent; (c) placing a quantity of the solution in a plurality of vessels; (d) optionally, placing a portion of a different derivatising agent in each vessel; (e) causing crystallisation to occur; (f) analysing the contents of the vessels after the crystallisation has approached equilibrium to determine the compositions of the liquors and the compositions of the solids; and (g) comparing the compositions determined in step (f) to profile the performance of each system (by calculated means) in terms of the projected maximum yield of target compound is an optimised crystallisation process.
摘要:
A method for chromatographically separating a first class of organic acids from a second class of acids which are both present in a liquid feed mixture by passing the liquid feed mixture through a bed including a non-functionalized polymeric macroporous adsorbent, wherein: i) the first class of organic acids are selected from one or more of: propionic acid, lactic acid, itaconic acid, succinic acid, maleic acid, citric acid, ascorbic acid and α-ketoglutaric acid; and ii) the second class of organic acids are selected from one or more of: glycolic acid, gluconic acid, malic acid, tartaric acid and saccharic acid.
摘要:
A continuous process is described for the one-pot synthesis of compounds, such as metal salts and metal complexes, as well as optionally for the protection of the compounds thus obtained by coating and/or impregnation with suitable compounds.
摘要:
The present invention relates to the use as perfuming ingredient, in particular to confer odor notes of the violet, violet leaves type, of a compound of formula (I), wherein n represents 1 or 2, A represents CH 2 or CO; and R represents a C 1-4 alkyl or alkenyl group or a C 3 cycloalkyl group, or when A is a CH 2 group R may also represent a C 1-3 acyl group. Moreover, following what is mentioned herein, the present invention comprises the invention's compound as part of a perfuming composition or of a perfuming consumer product.
摘要:
The invention is to a process for producing an acrylate product. The process includes the steps of contacting an alkanoic acid and an alkylenating agent over a catalyst composition under conditions effective to produce the acrylate product. The catalyst composition comprises vanadium, bismuth and tungsten. Preferably, the catalyst comprises 0.3 wt% to 30 wt% vanadium, 0.1 wt% to 69 wt% bismuth and 0.1 wt% to 61 wt% tungsten, in an active phase.
摘要:
The invention relates to a catalyst which comprises: a) a mixed metal oxide of molybdenum, vanadium, niobium and optionally tellurium; and b) ceria particles having a crystallite size greater than 15 nanometers (nm); wherein the amount of the ceria particles, based on the total amount of the catalyst, is of from 1 to 60 wt. %. Further, the invention relates to a process for preparing a catalyst, which comprises mixing a mixed metal oxide of molybdenum, vanadium, niobium and optionally tellurium with ceria particles having a crystallite size greater than 15 nanometers (nm), wherein the amount of the ceria particles, based on the total amount of the catalyst, is of from 1 to 60 wt. %. Still further, the invention relates to an alkane oxidative dehydrogenation and/or alkene oxidation process wherein such catalyst is used.