TOP > 外国特許検索 > Water-soluble photochromic compound

Water-soluble photochromic compound

外国特許コード F160008904
整理番号 92US
掲載日 2016年11月14日
出願国 アメリカ合衆国
出願番号 201314427635
公報番号 20150307541
公報番号 9738675
出願日 平成25年9月6日(2013.9.6)
公報発行日 平成27年10月29日(2015.10.29)
公報発行日 平成29年8月22日(2017.8.22)
国際出願番号 JP2013074052
国際公開番号 WO2014042087
国際出願日 平成25年9月6日(2013.9.6)
国際公開日 平成26年3月20日(2014.3.20)
優先権データ
  • 特願2012-199292 (2012.9.11) JP
  • 2013WO-JP74052 (2013.9.6) WO
発明の名称 (英語) Water-soluble photochromic compound
発明の概要(英語) (US9738675)
A diarylethene compound having high water-solubility is provided, and the compound is a diarylethene compound of formula (I) wherein, Sg is a monovalent sugar-type residue consisting of a sugar-type compound (in which some of hydroxyl groups may be protected) selected from a group consisting of a six-membered ring sugar, a five-membered ring sugar, cyclitol and oligosaccharides containing a six-membered ring sugar, a five-membered ring sugar, or cyclitol and excluding an hydroxyl group; U is ―(CH2)n-, ―CH2―U′―, or ―C(═O)― (wherein, n is an integer of 1 to 5, U′ is a C1-C10 alkyl group binding to Ar); and Ar is a group represented by formula (A1) or (A2); wherein, X is S, SO2, NR3 (R3 is a C1-C3 alkyl group) or O, R is C1-C4 alkyl group, R1 and R2 are independently a C1-C3 alkyl group, a is 0 or 1, b is an integer of 0-3, and * represents a bond with U); Y is a hydrogen atom or a halogen atom; m is an integer of 5-7.
特許請求の範囲(英語) [claim1]
1. A diarylethene compound represented by formula (I)

wherein, Sg is a monovalent sugar residue formed by removing one hydroxyl group from a sugar compound or a monovalent protected sugar residue formed by removing one hydroxyl groups from a sugar compound in which one or more other hydroxyl groups are protected, and wherein the sugar is selected from the group consisting of a six-membered ring sugar, a five-membered ring sugar, cyclitol and oligosaccharides containing a six-membered ring sugar, a five-membered ring sugar, or cyclitol; U is -- (CH2)n -- , -- CH2 -- U' -- , or -- C(.dbd.O) -- wherein
n is an integer of 1 to 5,
U' is a C2-C10 branched alkylene group binding to Ar, and
Ar is a group represented by formula (A1) or (A2);
wherein,
X is S, SO2, NR3 in which R3 is a C1-C3 alkyl group, or O,
R is a C1-C4 alkyl group,
R1 and R2 are independently a C1-C3 alkyl group,
a is 0 or 1,
b is an integer of 0-3, and
* represents a bond with U;
Y is a hydrogen atom or a halogen atom; and
m is an integer of 3 to 5.
[claim2]
2. The compound according to claim 1, wherein the Sg is a monovalent sugar residue formed by removing one hydroxyl group from pyranose.
[claim3]
3. The compound according to claim 1, wherein the Sg is a monovalent sugar residue formed by removing one hydroxyl group from pyranose at a position-1 carbon.
[claim4]
4. The compound according to claim 1, wherein the Sg is a monovalent sugar residue formed by removing one hydroxyl group from cyclitol.
[claim5]
5. The compound according to claim 1, wherein the X is S or SO2.
[claim6]
6. A method for producing a diarlyethene compound according to claim 1, comprising: (1) a step of preparing a halogenated sugar derivative derived from a sugar-type compound selected from the group consisting of a six-membered ring sugar, a five-membered ring sugar, cyclitol and oligosaccharides containing a six-membered ring sugar, a five-membered ring sugar, or cyclitol, and having 1 hydroxyl group substituted with a halogen atom, and all other hydroxyl groups protected by protection groups;
(2) an etherification step of reacting the halogenated sugar derivative with the compound represented by formula (a) to generate a compound represented by formula (b)

wherein, U, Ar, Y and m are as defined above;

wherein, U, Ar, Y and m are as defined above, and PSg shows a group in which all hydroxyl groups of the Sg are protected; and (3) a deprotection step of removing a protection group of the compound represented by formula (b).
[claim7]
7. The method according to claim 6, wherein step (1) is performed under a presence of Ag2O.
[claim8]
8. The method according to claim 6, wherein the halogen atom in the halogenated sugar derivative is bromine atom.
[claim9]
9. The method according to claim 6, wherein a protection group in the halogenated sugar derivative is an acyl group.
  • 発明者/出願人(英語)
  • TOKIWA HIROAKI
  • IRIE MASAHIRO
  • IKEDA KIYOSHI
  • OTSUBO TADAMUNE
  • JOSHO GAKUEN EDUCATIONAL FOUNDATION
  • RIKKYO EDUCATIONAL
国際特許分類(IPC)
掲載情報について、詳しくお知りになりたい方は下記「問合せ先」まで直接お問い合わせください。

PAGE TOP

close
close
close
close
close
close