Spectroscopic studies. Part II. Steric conformations of some αβ-unsaturated ketones
作者:F. H. Cottee、B. P. Straughan、C. J. Timmons、W. F. Forbes、R. Shilton
DOI:10.1039/j29670001146
日期:——
ketones have been examined, and three main trends emerge as criteria to distinguish the two conformations. By use of these criteria some labile αβ-unsaturated ketones have been assigned conformations which are believed to predominate at room temperature, although for a number of the ketones the actual conformation is probably non-planar.
This invention is related to the fields of organic chemistry and nanotechnology. In particular, it relates to materials and methods for the preparation of organic synthons and bridged macrocyclic module compounds. The bridged macrocyclic module compounds may be used to prepare macrocyclic compositions such as nanofilms, which may be useful for filtration.
Disclosed herein are compounds that form covalent bonds with Bruton's tyrosine kinase (BTK). Methods for the preparation of the compounds are disclosed. Also disclosed are pharmaceutical compositions that include the compounds. Methods of using the BTK inhibitors are disclosed, alone or in combination with other therapeutic agents, for the treatment of autoimmune diseases or conditions, heteroimmune diseases or conditions, cancer, including lymphoma, and inflammatory diseases or conditions.
Process for preparing adjacently disubstituted ketones, novel prostaglandins E1 and anti-thrombotic compositions containing them
申请人:TEIJIN LIMITED
公开号:EP0019475A2
公开(公告)日:1980-11-26
Novel 7-hydroxyprostaglandins E1, or stereoisomers thereof, or protected derivatives thereof, having the following formula:
wherein R3 represents H, CH3 or C2H5, R9 represents H or CH3, R10 and R are identical or different, and each represents H, tetrahydropyranyl or t-butyldimethylsilyl.
Also provided is a process for producing adjacently disubstituted ketones including the above novel compounds, which process comprises reacting an a, #-unsaturated carbonyl compound with a cuprous salt and an organolithium compound in an aprotic inert organic medium in the presence of trialkylphosphine, the amounts of said cuprous salt and said organolithium compound being substantially equimolar, and reacting the product with a protected acetal derivative of an organic carbonyl compound or an aldehyde in the presence of a Lewis acid if necessary followed by reacting the product with a proton donor.