Abstract: A method of forming a probe, wherein the method includes converting cholenic acid into a compound with a terminal alkyne group, wherein the converting the cholenic acid comprises using a sequence, wherein the sequence comprises synthesizing a THP-protection group, LiAlH4 reduction, Dess-Martin oxidation, and Seyferth-Gilbert-Bestmann homologation. The method additionally includes forming A-Chol by removing the THP-protection. Further, the method includes forming PhA-Chol from the compound with the terminal alkyne group via a palladiumcatalyzed Sonogashira reaction. Additionally, the method includes forming PhDY Chol from the compound with the terminal alkyne group via a coppercatalyzed Cadiot-Chodkiewicz reaction.

Abstract: A method of forming a probe, wherein the method includes converting cholenic acid into a compound with a terminal alkyne group, wherein the converting the cholenic acid comprises using a sequence, wherein the sequence comprises synthesizing a THP-protection group, LiAlH4 reduction, Dess-Martin oxidation, and Seyferth-Gilbert-Bestmann homologation. The method additionally includes forming A-Chol by removing the THP-protection. Further, the method includes forming PhA-Chol from the compound with the terminal alkyne group via a palladiumcatalyzed Sonogashira reaction. Additionally, the method includes forming PhDY-Chol from the compound with the terminal alkyne group via a coppercatalyzed Cadiot-Chodkiewicz reaction.

Abstract: The invention pertains to a process for the preparation of a high purity composition of (7?, 17?)-17-hydroxy-7-methyl-19-nor-17-pregn-5(10)-en-20-yn-3-one. The process provides for a composition with less than 0.5% of (7?, 17?)-17-hydroxy-7-methyl-19-nor-17-pregn-4-en-20-yn-3-one. This composition can be used as a source for the preparation of stable pharmaceutical dosage units.

Abstract: In a process for the suspension hydrogenation of an anthraquinone compound or a mixture of two or more thereof in a reactor in which there are present the working solution in which at least one catalyst is suspended and, in addition, a hydrogen-containing gas phase, the working solution and the gas phase are, in the reactor, passed at least partly through a fitting having openings or channels whose hydraulic diameter is from 0.5 to 20 mm, preferably from 1 to 10 mm, particularly preferably from 1 to 3 mm.

Abstract: Methods and compositions for preventing and treating neovascularization with steroids is disclosed.

Abstract: The invention pertains to vitamin D amide derivatives of formula (I). These novel 1.alpha.-hydroxy vitamin D derivatives and their 20-epi analogues comprise compounds of formula (I) and corresponding 5,6-trans isomers, where Y represents an alkylene or alkenylene group containing up to four carbon atoms; R.sup.1 and R.sup.2 independently represent a hydrogen atom or a lower alkyl or cycloalkyl group, or R.sup.1 R.sup.2 N-- represents a heterocyclic group; and R.sup.3 and R.sup.4 independently represent a hydrogen atom or an O-protecting group. Active compounds, in which R.sup.3 and R.sup.4 are hydrogen atoms or metabolically labile O-protecting groups exhibit potent cell modulating effect, but minimal effect on calcium metabolism.

Abstract: The invention pertains to vitamin D amide derivatives of formula (I). These novel 1.alpha.-hydroxy vitamin D derivatives and their 20-epi analogues comprise compounds of formula (I) and corresponding 5,6-trans isomers, where Y represents an alkylene or alkenylene group containing up to four carbon atoms; R.sup.1 and R.sup.2 independently represent a hydrogen atom or a lower alkyl or cycloalkyl group, or R.sup.1 R.sup.2 N-- represents a heterocyclic group; and R.sup.3 and R.sup.4 independently represent a hydrogen atom or an 0-protecting group. Active compounds, in which R.sup.3 and R.sup.4 are hydrogen atoms or metabolically labile 0-protecting groups exhibit potent cell modulating effect, but minimal effect on calcium metabolism.

Abstract: Disclosed are .DELTA..sup.9(11) -steroids of the formula ##STR1## which have been found to be angiostatic and therefore are useful in the control of embryogenesis, inflammatory conditions, tumor growth as well as other abnormalities.