WATER-SOLUBLE PHOTOCHROMIC MOLECULES

摘要

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); andAr 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.

主权项

1. A diarylethene compound represented by 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 a 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);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; and m is an integer of 5-7.