This invention relates to A crown ether of formula (I)
wherein m is 4, 5, 6, 7, or 8 and i is, independently for each occurrence, 1 or 2; at least one occurrence in the crown ether of R1, R2 and the carbon to which R1 and R2 are attached, said carbon being bound directly to an ether oxygen of formula (I), form together a group of formula (II)
wherein L is a linker which is absent or selected from a covalent bond and
(CR5R6)n, useful as carriers for pharmaceutical and diagnostic compositions.
这项发明涉及一种式(I)的
冠醚,其中m为4、5、6、7或8,i为每次出现时独立取1或2;在
冠醚中至少有一个R1、R2和R1和R2附着的碳形成一个式(II)的基团,其中L是一个连接物,可以是缺席或选择自共价键和(CR5R6)n,用作药物和诊断组合物的载体。