Pyrimidinones as reversible metaphase arresting agents
摘要:
5-Halo-N(1)-substituted 2(1H)-pyrimidinones have the ability to cause reversible arrest of mitosis during metaphase, Highly active compounds have a heteroatom (O, S or N) in the beta-position of the N(1)-carbon chain which is further substituted by an aryl group. In vitro data have been provided. It is suggested that reversible metaphase inhibitors can be used as synchronizing agents of cell-cycles by applying them in a sequential manner when a phase-specific cytotoxic drug is used in the treatment of diseases caused by uncontrolled rapidly proliferating cells. The active compounds are prepared from 2-pyrimidinones by alkylation reactions. The key reactants are alpha-chloroalkyl ethers, sulfides and amides; methods for their syntheses have been described.
Pyrimidinones as reversible metaphase arresting agents
摘要:
5-Halo-N(1)-substituted 2(1H)-pyrimidinones have the ability to cause reversible arrest of mitosis during metaphase, Highly active compounds have a heteroatom (O, S or N) in the beta-position of the N(1)-carbon chain which is further substituted by an aryl group. In vitro data have been provided. It is suggested that reversible metaphase inhibitors can be used as synchronizing agents of cell-cycles by applying them in a sequential manner when a phase-specific cytotoxic drug is used in the treatment of diseases caused by uncontrolled rapidly proliferating cells. The active compounds are prepared from 2-pyrimidinones by alkylation reactions. The key reactants are alpha-chloroalkyl ethers, sulfides and amides; methods for their syntheses have been described.
Oxidation of alcohols by “activated” dimethyl sulfoxide. a preparative, steric and mechanistic study
作者:Kanji Omura、Daniel Swern
DOI:10.1016/0040-4020(78)80197-5
日期:1978.1
and bicyclic alcohols with dimethyl sulfoxide (DMSO) “activated” by numerous electrophiles was studied: yields of carbonyls, by-products and recovered alcohols were quantitatively determined. Pathways for carbonyl and by-product formation are presented. Generally, yields of carbonyls increase with increased sterichindrance in the alcohols. Steric effects of tertiary amines, used for basification, were
Trimethylallylsilane reacts with monothioacetals in the presence of tin (IV) chloride, titaniumtetrachloride, or boron trifluoride–diethyl ether to give the homoallyl ethers and homoallyl sulphides.