Cysteamine derivatives and antirheumatic agents containing cysteamine
申请人:Terumo Kabushiki Kaisha
公开号:US05155106A1
公开(公告)日:1992-10-13
A cysteamine derivative represented by general formula (I): ##STR1## wherein R.sub.1 represents a straight-chain or a branched alkyl radical having 1 to 6 carbon atoms, R.sub.2 represents hydrogen atom or n-propyl radical, and X represents a radical selected from the group consisting of radicals containing cysteamine moiety (N S) represented by formula (II): ##STR2## formula (III): ##STR3## formula (IV): ##STR4## formula (V): ##STR5## or formula (VI): ##STR6## wherein R.sub.2 represents hydrogen atom or a straight-chain or a branched alkyl group having 1 to 10 carbon atoms is provided. The cysteamine derivative is effective as an antirheumatic agent.
Thiols reacted with 2-oxazolidinones in the presence of alkoxides to give β-amino sulfides in high yields. The method was applied to the synthesis of 5,6-dihydro-1,4-thiazin-3(2H)-ones.
Alkylthioethanamine carbamic acid derivatives and their use in biocidal
申请人:The Dow Chemical Company
公开号:US05155131A1
公开(公告)日:1992-10-13
Alkylthioalkylamine carbamic acid derivatives are prepared which correspond to the formula: ##STR1## wherein R and R.sub.1 are both independently alkyl groups containing from 6 to 16 carbon atoms, and m and n are both independently integers of from 2 to 3. Compositions containing these compounds inhibit the growth of organisms such as bacteria, yeast, fungi, mold, algae, mollusks, hydroids, or tunicates on surfaces.
Control of biofouling with certain alkylthioalkylamines
申请人:THE DOW CHEMICAL COMPANY
公开号:EP0266828A1
公开(公告)日:1988-05-11
A method for inhibiting microorganisms and/or controlling biofouling of cooling towers at an alkaline pH and/or high water hardness by use of certain alkylthioalkylamines such as n-decylthioethylamine.