| 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 -(CH 2 )n-, -CH 2 -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, SO 2 , NR 3 (R 3 is a C1-C3 alkyl group) or O,
R is C1-C4 alkyl group,
R 1 and R 2 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. |
