Optically active ceramides and process for producing the same
申请人:Takasago International Corporation
公开号:EP0856510B1
公开(公告)日:2002-12-11
Keratin fiber strengthening agent and method for strengthening keratin fiber
申请人:Takasago International Corporation
公开号:EP0920852B1
公开(公告)日:2005-06-01
US5998668A
申请人:——
公开号:US5998668A
公开(公告)日:1999-12-07
US6379659B1
申请人:——
公开号:US6379659B1
公开(公告)日:2002-04-30
Optically active compound and process for producing the same
申请人:Takasago International Corporation
公开号:US05998668A1
公开(公告)日:1999-12-07
An optically active (2S,3R)-2-(3'-hydroxyacyl)aminoalkane-1,3-diol and a process for producing the same are disclosed. The compound is represented by the following general formula (1): ##STR1## wherein R.sup.1 represents a linear or branched, saturated aliphatic hydrocarbon group having 9 to 19 carbon atoms; R.sup.2 represents a linear or branched, saturated aliphatic hydrocarbon group having 1 to 19 carbon atoms; and symbol * means that the carbon atom is an asymmetric carbon atom of the S or R configuration. The optically active compound is a ceramide in which the fatty acid moiety has an optically active hydroxyl group in the 3-position.