摘要:
Methods and systems for making intermediates in the synthesis of onapristone are provided. Aspects include the photoconversion of onapristone synthesis intermediates using a narrow band frequency light source.
摘要:
A vane pump comprising a central shaft adapted to receive a rotational force from the outside, a ring gear formed in a hollow portion provided in the shaft, a linear gear formed on one end of a constant velocity coupling and meshed with the ring gear, and a ring gear formed in a hollow portion of an inner rotor and meshed with a linear gear formed on the other end of the constant velocity coupling, whereby it is rendered possible to rotate the shaft and inner rotor at an equal speed, insert a circular portion formed at one end of a vane into a circular hollow space of the inner rotor, bring the other end of the vane into contact with an inner surface of an outer rotor, and vary the volumes of a compression chamber and a supply chamber, the air being thereby compressed, so that high-pressure compressed air can be obtained by a small-volume vane pump without encountering the collision of parts causative of noise.
摘要:
wherein R1 and R2 are hydrogen or an alkyl group having 1-2 Catoms, and to processes for their preparation. The novel compounds have very interesting biological activities, such as anabolic, androgenic, estrogenic, progestative, antiandrogenic, anti-oestrogenic, ovulation-inhibiting and gonadinhibiting activities.
The invention relates to novel 11,11-alkylidene steroids of the estrane and (19-nor-)pregnane series having a double bond starting from carbon atom 5, the alkylidene group in 11-position having the formula
摘要翻译:本发明涉及具有从碳原子5开始的双键的雌激素和(19-去甲基)孕烷系列的新型11,11-亚烷基类固醇,11位的亚烷基具有式R 1 ANGLE C =,R 2,其中 R1和R2是氢或具有1-2个C原子的烷基,并用于制备它们。
摘要:
Novel 10.beta.-alkynyl-steroids of the formula ##STR1## wherein R is selected from the group consisting of hydrogen, optionally substituted alkyl and alkoxy of 1 to 8 carbon atoms, optionally substituted alkenyl and alkynyl of 2 to 8 carbon atoms, optionally substituted aryl and aralkyl, optionally esterified carboxy, dialkylamino with alkyl of 1 to 6 carbon atoms, halogen and trialkylsilyl of 1 to 7 alkyl carbon atoms, R.sub.6 and R.sub.7 taken together with the carbon atoms to which they are attached form cyclopropyl or R.sub.6 is hydrogen and R.sub.7 is R.sub.1, R.sub.1 is selected from the group consisting of hydrogen, optionally substituted alkyl of 1 to 6 carbon atoms, optionally substituted alkenyl and alkynyl of 2 to 6 carbon atoms and acetylthio, R.sub.2 is methyl or ethyl, X and Y taken together form a member selected from the group consisting of ##STR2## Alk is alkyl of 1 to 8 carbon atoms or X is hydroxy and Y is ##STR3## or X is optionally acylated or etherified hydroxy and Y is selected from the group consisting of --CH.sub.2 --CH.sub.2 --CH.sub.2 --OH, hydrogen, R.sub.4, and --CH.sub.2 --CH.sub.2 --COOM, M is selected from the group consisting of hydrogen, --NH.sub.4 and alkali metal and R.sub.4 is selected from the group consisting of alkyl of 1 to 6 carbon atoms and alkenyl and alkynyl of 2 to 6 carbon atoms, the dotted lines indicate the optional presence of a second carbon-carbon bond when R.sub.6 and R.sub.7 and the carbon to which they are attached do not form cyclopropyl and the wavy lines indicate that R.sub.6 and R.sub.7 may be in the .alpha. or .beta. position with the proviso that R is not hydrogen when R.sub.6 and R.sub.7 are hydrogen, R.sub.2 is methyl, X is optionally acylated or etherified hydroxy, Y is hydrogen or R.sub.4 and the dotted lines are not a second carbon-carbon bond having aldosterone antagonistic activity and increased hydrosodic diuresis with organic potassium conservation with little secondary hormone effects.
摘要:
Novel 10-substituted steroids of the formula ##STR1## wherein R is selected from the group consisting of hydrogen, alkyl and substituted alkyl of 1 to 8 carbon atoms, alkenyl, substituted alkenyl, alkynyl and substituted alkynyl of 2 to 8 carbon atoms, aryl and substituted aryl, aralkyl and substituted aralkyl, protected hydroxy, optionally esterified carboxy, --NH.sub.2, protected amino, mono and di-alkyl amino of 1 to 4 alkyl carbon atoms, halogen and trialkylsilyl, R.sub.2 is methyl or ethyl, R.sub.6 and R.sub.7 together with the carbon atoms to which they are attached form cyclopropyl or R.sub.6 is hydrogen and R.sub.7 is R.sub.1, R.sub.1 is selected from the group consisting of hydrogen, alkyl and substituted alkyl of 1 to 6 carbon atoms, acetylthio and alkenyl, substituted alkenyl, alkynyl and substituted alkynyl of 2 to 6 carbon atoms, X is optionally acylated or etherified hydroxyl and Y is selected from the group consisting of hydrogen, R.sub.4, --CH.sub.2 --CH.sub.2 COOM and --CH.sub.2 --CH.sub.2 --CH.sub.2 OH, M is hydrogen, alkali metal or --NH.sub.4 or X and Y together form a member of the group consisting of ##STR2## or X is --OH and Y is ##STR3## R.sub.4 is selected from the group consisting of alkyl of 1 to 6 carbon atoms and alkenyl and alkynyl of 2 to 6 carbon atoms, Alk is alkyl of 1 to 8 carbon atoms, the dotted lines in the 1(2) and 6(7) indicate the optional presence of a second carbon-carbon bond with the proviso that when R.sub.6 and R.sub.7 form cyclopropyl, there is no 6(7) second bond, the dotted line in 10-substituent indicates the optional presence of a third carbon-carbon bond, the wavy lines at R.sub.6 and R.sub.7 indicate the possible .alpha.- or .beta.-position with the proviso that R is not hydrogen when R.sub.6 and R.sub.7 are hydrogen R.sub.2 is methyl, X is hydroxy or acetoxy and Y is hydrogen, the dotted lines at 1(2) and 6(7) do not represent a second bond and the dotted line in the 10-substituent is a third carbon-carbon bond useful as aldosterone antagonists and for increasing hydrosodium diuresis while preserving organic potassium with reduced hormonal side effects.
摘要:
Novel 3,2'-spiro(1',3'-thiazolidine) compounds which are transient prodrug forms of known 6- and/or 9-haloglucocorticosteroids are described. The subject prodrugs provide improved delivery of the prior art steroids for therapeutic purposes, particularly in alleviating inflammation, and can be prepared by known methods, for example, by reacting the corresponding 3-keto steroids with a thiazolidine forming reagent such as an L-cysteine alkyl ester.
摘要:
A novel process for the preparation of 21-hydroxy-20-keto-.DELTA..sup.16 -steroids comprising reacting a 17-(isocyanosulfonylmethylene)-steroid with an aldehyde and an alcohol to form a 17-(2-alkoxy-3-oxazolin-4-yl)-.DELTA..sup.16 -steroid and subjecting the latter to hydrolysis to obtain the corresponding 21-hydroxy-20-keto-.DELTA..sup.16 -steroid which are useful to prepare corticoid steroids and novel intermediates.
摘要:
Compounds of the formula I ##STR1## wherein R.sub.1 is ##STR2## wherein R.sup.I and R.sup.II each independently is alkyl of 1-4 carbon atoms, or R.sup.I and R.sup.II together with the connecting N-atom form a 5- or 6-membered heterocyclic ring whose remaining atoms are all C-atoms, or which also includes and additional N-atom, an additional O or S atom or a combination thereof; ##STR3## wherein R.sup.I and R.sup.II are as defined above; --SR.sup.III, wherein R.sup.III is methyl, ethyl or phenyl; or--OR.sup.IV, wherein R.sup.IV is methyl, ethyl, propyl, methoxymethyl, allyl, or .beta.-dimethylaminoethyl;R.sub.2 is hydrogen, methyl, or ethyl; ##STR4## wherein the wavy lines mean that the substituent is in the .alpha.- or .beta.-position, and ##STR5## M is Na, K or Li; and R.sup.V, R.sup.VI, R.sup.VII and R.sup.VIII each independently is alkyl of 1-4 carbon atoms, have valuable pharmacological properties, e.g., a combination of antiprogestational and antimineralocorticordal effects.
摘要:
Novel 17-spirosultines of steroids and the corresponding .gamma.-hydroxy acids of the formula ##STR1## wherein R.sub.1 is alkyl of 1 to 4 carbon atoms, A is hydrogen and B is hydrogen or hydroxyl of .beta.configuration or A and B together form a double bond, X and Y together form the group ##STR2## or X is --OH and Y is ##STR3## and M is selected from the group consisting of hydrogen, --NH.sub.4 and an alkali metal having a remarkable progestomimetic and antialdosteronic activity and a novel process for their preparation and novel intermediates.