Title:
AMINOHYDROXYBENZOPHENONE DERIVATIVE, METHOD FOR PRODUCING THE SAME AND ULTRAVIOLET ABSORBER AND SKIN EXTERNAL PREPARATION USING THE SAME
Document Type and Number:
Japanese Patent JP2014210715
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a new hydrophilic and neutral compound having ultraviolet A wave (UVA) absorbing properties and a method for producing the same, and to provide an ultraviolet absorber and a skin external preparation using the same.SOLUTION: There is provided an aminohydroxybenzophenone derivative represented by the general formula (I) and a salt thereof. (In which, Rand Reach independently represents a straight chain or branched alkyl group having 1 to 4 carbon atoms which is substituted by at least one hydroxyl group or the like; x represents COORor the like; Rrepresents a straight chain or branched alkyl group having 1 to 4 carbon atoms which is substituted by at least one hydroxyl group or the like; and Rand Reach independently represents a straight chain or branched alkyl group having 1 to 4 carbon atoms or the like.)
Inventors:
SHIMIZU TAKASHI
Application Number:
JP2013086735A
Publication Date:
November 13, 2014
Filing Date:
April 17, 2013
Export Citation:
Assignee:
ROHTO PHARMA
International Classes:
C07C225/22; A61K8/42; A61K31/166; A61P17/18; A61Q17/04; C07C221/00; C07C231/02; C07C237/32
Attorney, Agent or Firm:
Patent business corporation ユニアス international patent firm