摘要:
1-[2-(2,4-Dichlorophenyl)-pentyl]-1H-1,2,4-triazole can be produced, in a novel, simple, economical and isomer-free form, by reacting 2-(2,4-dichlorophenyl)-valeronitrile, in the presence of hydrogen, an acid and a hydrogenation catalyst, with a compound H.sub.2 N--NH--R to a compound of the formula ##STR1## hydrogenating the compound (III) catalytically to a compound ##STR2## hydrolysing compounds (IV) wherein R is not hydrogen, and converting the compounds (IV) wherein R=H, or salts thereof, with formamide and/or [3-(dimethylamino)-2-azaprop-2-en-1-ylidene]-dimethylammonium chloride, into 1-[2-(2,4-dichlorophenyl)-pentyl]-1H-1,2,4-triazole, or converting compounds (IV) wherein R=--COR', with aqueous formic acid, into the corresponding N,N'-bisformyl derivatives, and reacting these with formamide, optionally in the presence of NH.sub.3, to 1-[2-(2,4-dichlorophenyl)-pentyl]-1H-1,2,4-triazole. R in the formulae is hydrogen, --CHO, --COR', --COOR' or --CONH.sub.2, and R' is C.sub.1 -C.sub.4 -alkyl, benzyl or phenyl.1-[2-(2,4-Dichlorophenyl)-pentyl]-1H-1,2,4-triazole exhibits fungicidal activity, and can be used to control phytopathogenic fungi.
摘要:
A method and a gauge for inspecting a self-locking threading provided close to one end of a tubular component used for exploration or operation of hydrocarbon wells, the threading including a lead with a constant width and thread root widths that increase in the direction of a distal surface of the tubular component. The gauge can be displaced in the self-locking threading to a locking position, the locking position then being marked and compared with a reference locking position.
摘要:
The present invention relates to a process for preparing a porphyrin of formula (I), optionally in the form of a salt with an alkali metal and/or in the form of a metal complex: in which: R and R′ are as defined in claim 1, comprising: a step of condensation, in an acidic medium, between a dipyrromethane of formula (II): in which R′b is as defined above for (I), and a dipyrromethane of formula (III): in which R″ is as defined in claim 1, and also the compounds of formula (III).
摘要:
The embodiments provide compounds of the general Formulae I through general Formula VIII, as well as compositions, including pharmaceutical compositions, comprising a subject compound. The embodiments further provide treatment methods, including methods of treating a hepatitis C virus infection and methods of treating liver fibrosis, the methods generally involving administering to an individual in need thereof an effective amount of a subject compound or composition.
摘要:
The present invention provides a process for the sulfurization of phosphorus-containing compounds. More particularly, the process involves contacting the compound to be sulfurized with a sulfur transfer reagent as defined hereinbefore in a solvent or a mixture of solvents.
摘要:
6,7-Dihydro-5H-imidazo[1,5-a]pyridin-8-one (I), is obtainable in high yields by: 1) a process which proceeds from a suitably protected C-(3-hydroxypyridin-2-yl)methylamine whose amine is converted to the formamide which is then cyclized to the imidazo[1,5-a]pyridine and hydrogenated to the 6,7-dihydro-5H-imidazo[1,5-a]pyridin-8-one, and suitably protected C-(3-hydroxypyridin-2-yl)methylamines can be prepared either in 2 steps proceeding from commercially available 3-hydroxy-2-cyanopyridine [932-35-4] or in 3 steps proceeding from commercially available 2-hydroxymethylpyridin-3-ol [14173-30-9]; 2) a process for preparing 4-hydroxy-1-(1H-imidazol-4-yl)butan-1-one, an intermediate from the synthesis of 6,7-dihydro-5H-imidazo[1,5-a]pyridin-8-one (formula I), as described in WO 2002/040484, proceeding from N,N-dimethyl-2-(trialkylsilanyl)imidazole-1-sulphonamide by lithiation and subsequent reaction with a suitably protected 4-hydroxybutyraldehyde, followed by oxidation of the secondary alcohol, acid-induced deprotection of the imidazole and deprotection of the alcohol functionality; 3) a process which proceeds from 5,6,7,8-tetrahydroimidazo[1,5-a]pyridine [38666-30-7], which is oxidized.
摘要:
Oligonucleotides are provided which have increased nuclease resistance, substituent groups for increasing binding affinity to complementary nucleic acid strand, and subsequences of 2′-deoxy-erythro-pentofuranosyl nucleosides that activate RNase H. Such oligonucleotides are useful for diagnostics and other research purposes, for modulating the expression of a protein in organisms, and for the diagnosis, detection and treatment of other conditions susceptible to ooligonucleotide therapeutics.
摘要:
A modular panel system having a plurality of panels connected together, each of the panels would normally be of a rectangular configuration, the panels being connected together by means of a vertically extending member which is secured to side walls of the panels and an elongated flexible interconnecting member having first and second longitudinally extending side marginal edges and an enlarged edge portion designed to be retained by the vertically extending member. A U-shaped raceway member which may be placed on either the top or bottom of a panel or between panels to provide for horizontal cables.
摘要:
The invention relates to a compound of formula (I) ##STR1## Wherein: B is adenine, guanine or hypoxanthineZ is hydrogen or a negative chargeR is --[CH.sub.2 CH(R.sup.1)--O].sub.n -R.sup.2, --CH.sub.2 CH.sub.2 X, in whichR.sup.1 is hydrogen or (C.sub.1 -.sub.6) alkylR.sup.2 is hydrogen or (C.sub.1 -.sub.6) alkyln is a number from 1 to 6X is OH, F, NR.sup.3 R.sup.4R.sup.3 and R.sup.4 are independently from each other hydrogen or (C.sub.1 -.sub.6) alkyland to methods of enzymatically treating these compounds with biocatalysts having cyclic phosphodiesterase activity.
摘要翻译:本发明涉及式(I)化合物,其中B是腺嘌呤,鸟嘌呤或次黄嘌呤Z是氢或负电荷R是 - [CH 2 CH(R 1)-O] n -R 2,-CH 2 CH 2 X,其中R 1是氢 或(C 1-6)烷基R 2是氢或(C 1-6)烷基n是1至6的数X是OH,F,NR 3 R 4 R 3和R 4彼此独立地是氢或(C 1-6)烷基,并且 用具有环状磷酸二酯酶活性的生物催化剂对这些化合物进行酶处理的方法。
摘要:
There is described a process for producing fungicidally active 4-phenylpyrrole derivatives of the formula I ##STR1## wherein R is halogen, C.sub.1 -C.sub.6 -alkyl or C.sub.1 -C.sub.6 -haloalkyl, andn is 0, 1 or 2, which process comprises reacting a 3-trifluoromethyl-4-phenylpyrrole of the formula II ##STR2## wherein R.sub.n is as defined under the formula I, and R.sub.1 is hydrogen or an acyl group, at elevated temperature and elevated pressure, with ammonia. Important intermediates and the production thereof are also described.