摘要:
6,6-ethylene-15,16-methylene-3-oxo-17.alpha.-pregn-4-ene-21,17.alpha.-carbolactones of general Formula I ##STR1## wherein ##STR2## is a CC-single of CC-double bond, R.sub.1 is a hydrogen atom or a methyl group,R.sub.2 is a methyl or ethyl group, and ##STR3## exhibit strong gestagen potency and an aldosterone-antagonistic activity.
摘要:
There is provided a process for the recovery of pure hellebrin which comprises extracting a defatted hellebrin extract dissolved in a water-alkanol mixture or water-acetone mixture with a mixture of a lower alkanol or acetone and di-, tri-, or tetrachloromethane (or dichloroethane) evaporating the extraction agent in a vacuum and then heating with ethanol until the deposition of the first hellebrin crystals begins.
摘要:
.beta.-D-Galactosidase conjugates for use in homogeneous immunoassays. .beta.-D-Galactosidase is conjugated with analytes and the resulting conjugates are combined with receptors for the analyte and a sample suspected of containing the analyte. The resulting enzymatic activity is compared to standard assay media for quantitative determination of the analyte.
摘要:
The present invention provides 12-dehydrodigoxin oximes of the general formula: ##STR1## wherein R.sub.1 and R.sub.2, which can be the same or different, are hydrogen atoms, lower acyl radicals or lower alkyl radicals or R.sub.1 and R.sub.2 together can represent an alkylidene radical containing 2 to 6 carbon atoms and R.sub.3 is a hydrogen atom or a lower alkyl or aralkyl radical. The present invention also provides a process for the preparation of these oximes and pharmaceutical compositions containing them and is also concerned with the use of these oximes for the preparation of pharmaceuticals for the treatment of cardiac insufficiency.
摘要:
New reactive asymmetrical dicarboxylic acid ester compounds of the formula ##STR1## wherein R.sub.1 is an alkyl radical containing up to 3 carbon atoms or is a digoxin or digitoxin residue, R.sub.2 and R.sub.3, which may be the same or different, are alkoxy radicals containing up to 3 carbon atoms or together represent an oxygen atom, X is a cyanomethoxy, succinimide-N-oxy, N-methyl-pyridiniumoxy, 2,4-dinitrophenoxy, 2,4,5-trichlorophenoxy, pentachlorophenoxy, phenylthio, p-nitrophenoxy, n-nitrophenylthio, piperidyl-N-oxy, phthalimido-N-oxy or benztriazol-N-oxy radical and n is 2, 3, 4 or 5, are useful for the preparation of reagents for the investigation of cardiac glycosides (Digitalis glycosides).
摘要:
Aminocardenolides of formula (I): ##STR1## in which R.sub.1, R.sub.2, R.sub.4, R.sub.5, and R.sub.6, which may be the same or different, each represents a hydrogen atom or a hydroxy, alkoxy or acyloxy group; R.sub.3 represents a lower alkyl, hydroxyalkyl, acyloxyalkyl, haloalkyl or ethylenedioxyalkyl group; R.sub.7 represents a hydrogen atom, or an alkyl or acyl group, and R.sub.8 represents a hydrogen atom, an alkyl group or an amino acid residue; a process for preparation of the compounds with the above formula by reaction of an oxo-3 genin with an ammonium salt in the presence of a borocyanohydride in an organic solvent. The aminocardenolides of formula (I) are useful especially for the treatment of cardiac ailments.
摘要:
Novel 19-oxygenated steroids of the 20-spiroxane series of the formula ##STR1## in which R.sup.3 is a lower alkyl radical carrying an oxygen-containing functional group and R.sup.4 is two hydrogen atoms or an oxo group, and which carry a double bond or a methylene group in the 6,7-position or carry a lower alkanoylthio group in the 7.alpha.-position, and the corresponding 17.beta.-hydroxy-21-carboxylic acids of the formula ##STR2## in which R.sup.3 is as defined above, and which carry a double bond or a methylene group in the 6,7-position, as well as salts thereof and 1,2-dehydro derivatives of all of these compounds are advantageous as potassium-saving diuretics in therapy since they antagonize the physiological effects of aldosterone but have only slight side effects on sexual functions of the body. The compounds are obtainable by conventional general preparation processes of steroid chemistry.
摘要:
Compounds of the formula ##SPC1##Wherein R.sub.3 is hydrogen, methyl, cyclopropylcarbonyl, benzoyl or thenoyl, andWhen R.sub.3 is hydrogen, R.sub.2 is phenyl, phenethyl, phenyl-propyl, chloro-propyl, chloro-phenyl, fluoro-phenyl, cycloalkyl of 3 to 8 carbon atoms or (cycloalkyl of 5 to 6 carbon atoms)-methyl, orWhen R.sub.3 is other than hydrogen, R.sub.2 is methyl, ethyl, phenyl, cyclopropyl or chloropropyl; the compounds are useful as cardiotonics.
摘要:
New dihydrodigoxin derivatives of the formula ##SPC1##Wherein one of R.sub.1 and R.sub.2 represents a methyl or ethyl radical and the other represents hydrogen, methyl, ethyl or acetyl (i.e. alkanoyl; and R.sub.3 is hydrogen or an acetyl group; are outstandingly effective for therapy of cardiac insufficiencies, particularly via peroral administration.
摘要翻译:式R 1和R 2的新的二氢二磷杂衍生物代表甲基或乙基,另一个表示氢,甲基,乙基或乙酰基(即烷酰基; R 3是氢或乙酰基);对治疗心脏功能不全有显着的效果 ,特别是通过口腔管理。