ORTHOESTER DERIVATIVES OF CROWN ETHERS AS CARRIERS FOR PHARMACEUTICAL AND DIAGNOSTIC COMPOSITIONS
申请人:Botti Paolo
公开号:US20120301401A1
公开(公告)日:2012-11-29
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; each occurrence of R
1
and R
2
is independently selected from hydrogen; linear or branched and substituted or unsubstituted C
1
to C
10
alkyl, alkenyl and alkinyl; and substituted or unsubstituted aryl with up to 10 ring atoms; or R
1
and R
2
together form an oxo group; at least one occurrence in the crown ether of R
1
, R
2
and the carbon to which R
1
and R
2
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 (CR
5
R
6
)
n
, each occurrence of R
5
and R
6
being independently selected from hydrogen; linear or branched and substituted or unsubstituted C
1
to C
10
alkyl, alkenyl and alkinyl; and substituted or unsubstituted aryl with up to 10 ring atoms, n being 1, 2 or 3; X and Y, independently from each other, are selected from O and S; Z, independently for each occurrence, is absent or an electron-withdrawing group; R
3
and R
4
, independently for each occurrence, are selected from hydrogen; linear or branched and substituted or unsubstituted C
1
to C
10
alkyl, alkenyl and alkinyl; substituted or unsubstituted aryl with up to 10 ring atoms; H(OCH
2
CH
2
)
k
- and H(OCH
2
CH
2
)
k
O—, wherein k is an integer number from 1 to 10; wherein substituents, if present, are selected from OH, O—CH
3
and halogens.
本发明涉及一种冠醚,其化学式为(I),其中m为4、5、6、7或8,i独立地为每次出现的1或2;R1和R2的每次出现独立地选择氢;线性或支链的、取代或未取代的C1至C10烷基、烯基和炔基;以及取代或未取代的芳基,其中环原子数最多为10;或者R1和R2一起形成氧代基;在冠醚中至少有一个出现的R1、R2和与R1和R2相连的碳原子,该碳原子直接与化学式(I)中的醚氧原子结合,共同形成化学式(II)中的基团,其中L是一个连接子,可以为空或选择为共价键和(CR5R6)n,其中R5和R6的每次出现独立地选择氢;线性或支链的、取代或未取代的C1至C10烷基、烯基和炔基;以及取代或未取代的芳基,其中环原子数最多为10,n为1、2或3;X和Y独立地选择为O和S;Z独立地为每次出现的不存在或为电子吸引基团;R3和R4独立地为每次出现的选择氢;线性或支链的、取代或未取代的C1至C10烷基、烯基和炔基;取代或未取代的芳基,其中环原子数最多为10;H(OCH2CH2)k-和H(OCH2CH2)kO—,其中k是从1到10的整数;其中,如果存在取代基,则从OH、O—CH3和卤素中选择。