1. A compound of formula (I)
1
or a solvate thereof wherein:
X is —O— or —NH—;
Q is (—CH
2
—)
p
, (—CH═CH—)
p
, (—C≡C—)
p
where p is an integer of from 0 to 4;
R
1
is hydrogen or methyl;
R
2
and R
3
independently represent O or S
n is an integer of 1 to 50; and
R is hydrogen or methyl.
化合物式(I)的复合物或其溶剂化物,其中:X为—O—或—NH—;Q为(—
CH2—)p,(—CH═CH—)p,(—C≡C—)p,其中p为0至4的整数;R1为氢或甲基;R2和R3独立地表示O或Sn为1至50的整数;而R为氢或甲基。