NOVEL REACTIONS OF AMINOOXOSULFONIUM YLIDE WITH EPOXIDES
作者:Kentaro Okuma、Kenshin Nishimura、Hiroshi Ohta
DOI:10.1246/cl.1984.93
日期:1984.1.5
Reactions of (dimethylamino)phenyloxosulfonium methylide with epoxides were carried out. When aromatic epoxides were used as substrates, cyclopropyl sulfones and oxetanes were obtained. When aliphatic epoxides were used, the products were only the cyclopropyl sulfones. While the aminooxosulfonium ylide acts as a methylene transfer reagent to give the corresponding oxetanes, an intramolecular SN2 type
An NH transaction: The first direct synthesis of tertiary NH sulfonimidamides from tertiary sulfinamides by electrophilic NH transfer has been achieved. In vitro studies did not reveal any intrinsic flaw of the sulfonimidamide group regarding properties relevant to medicinal chemistry.
Acid Catalyzed Alcoholysis of Sulfinamides: Unusual Stereochemistry, Kinetics and a Question of Mechanism Involving Sulfurane Intermediates and Their Pseudorotation
formed in this reaction with a full or predominant inversion of configuration at chiral sulfur or with predominant retention of configuration. The steric course of the reaction depends mainly on the size of the dialkylamido group in the sulfinamides and of the alcohols used as nucleophilic reagents. It has been found that bulky reaction components preferentially form sulfinates with retention of configuration
Multinuclear NMR study of variously substituted sulphonamides and sulphinamides
作者:P. Ruostesuo、A.-M. Häkkinen、T. Mattila
DOI:10.1002/mrc.1260250302
日期:1987.3
13C, 15N and 17O NMR chemical shifts, and also 1J(CH) and 1J(NH) values, have been determined for variously substituted sulphonamides and some sulphinamides, either neat or in acetone or dimethyl sulphoxide solution.
Provided is a compound having a superior PKC inhibitory action, and useful as a prophylactic or therapeutic agent for immune diseases, inflammatory diseases and the like, or a salt thereof. A compound represented by the formula (I):
wherein each symbol is as described in the DESCRIPTION, or a salt thereof has a superior PKC inhibitory action, and is useful as a prophylactic or therapeutic agent for immune diseases, inflammatory diseases and the like.