摘要:
There are provided novel 3,4-dihydrobenzopyran derivatives having anti-peptic ulcer, antitussive and/or expectorant activity. Also provided are medicinal uses of said 3,4-dihydrobenzopyran derivatives.
摘要:
The present invention provides a double-stranded RNA which inhibits replication of influenza B viruses by RNA interference, in which the double-stranded RNA comprises an RNA having 19 to 25 nucleotides homologous with a part of an mRNA transcribed from a genomic RNA of the influenza B viruses and an antisense RNA thereof.
摘要:
The present invention provides a double-stranded RNA which inhibits replication of influenza B viruses by RNA interference, in which the double-stranded RNA comprises an RNA having 19 to 25 nucleotides homologous with a part of an mRNA transcribed from a genomic RNA of the influenza B viruses and an antisense RNA thereof.
摘要:
There is provided a transfection device having a mixture (1) immobilized on a solid-phase support (3), the mixture including: a gene sample; a gene delivery material; and at least one compound selected from the group consisting of sericin, a hydrolysate thereof and a chemically modified product of sericin or a hydrolysate thereof.
摘要:
A cubic liquid crystal composition comprising at least one amphiphilic compound having the following general formula (1) and having an IV/OV value of 0.65 to 0.95, and water or an aqueous medium: wherein R represents a hydrophilic group; X and Y each independently represent a hydrogen atom or together form an oxygen atom; n is an integer of 0 to 4; and m is an integer of 0 to 3.
摘要:
The present invention provides a method for deriving an upstream or downstream component of a component necessary for phenotypic alteration of a living organism, the method comprising the steps of: specifying a pathway of interest related to the phenotypic alteration and a reference pathway different from the pathway of interest, and specifying a stimulant of interest and a reference stimulant which respectively stimulate the pathway of interest and the reference pathway; giving the stimulant of interest to the living organism to identify a collection of components of interest necessary for the phenotypic alteration; giving the reference stimulant to the living organism to identify a collection of reference components necessary for the phenotypic alteration; calculating an intersection between the collections of the components of interest and the reference components; and calculating a differential collection by subtracting the intersection from the collection of components of interest.
摘要:
The present invention provides a novel imidazole derivative having the chemical formula ##STR1## These compounds are useful for preventing or treating hypertension or congestive heart failure and have high activity, rapid action upon intravenous injection, good oral absorbtion, low toxicity, and long-lasting action. Also provided are pharmaceutical compositions which contain these compounds.
摘要:
Novel farnesylacetic acid ester derivatives containing an amine nitrogen in the alcohol residue thereof and represented by the following general formula exhibit high levels of antiulcerogenic activity and very low levels of toxicity: ##STR1## wherein A is an alkylene radical containing at least 2 carbon atoms; R.sup.1 is H, alkyl, cycloalkyl, aryl, aralkyl or alkenyl; R.sup.2 and R.sup.3 are independently H, alkyl, aryl, aralkyl or alkenyl or one of R.sup.2 and R.sup.3 forms, together with A, a piperidine, pyrrolidine, tetrahydropyrimidine or piperazine ring which contains the nitrogen atom lying therebetween or R.sup.2 and R.sup.3 combine to form, together with the adjacent nitrogen atom, a piperazine ring; provided that the total number of carbon atoms contained in A, R.sup.1, R.sup.2 and R.sup.3 is at least 5.
摘要:
Allenic esters of the formula: ##EQU1## (specific examples of R, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are given) and a process for the preparation thereof which comprises reacting propargyl alcohol derivatives with 2-substituted ortho-acetic acid esters in the presence of an acidic catalyst. These allenic esters are rearranged in the presence of an alkali catalyst to form .alpha., .beta., .gamma., .delta.-unsaturated carboxylic acid esters and are useful as intermediates in the synthesis of various perfumes, medicines, agricultural chemicals and the like.
摘要翻译:式R 2 R 1 R 4的酰亚胺酯R 3 -C = C = C-CH-COOR(R,R 1,R 2,R 3和R 4的具体实例)及其制备方法,其包括使炔丙醇衍生物 与2-取代的原乙酸酯在酸性催化剂存在下反应。 这些烯酸酯在碱催化剂存在下重排,形成α,β,γ,δ-不饱和羧酸酯,可用作合成各种香料,药物,农药等的中间体。