主权项 |
1. A compound of Formula (I):and racemates, enantiomers and diastereomers thereof;wherein:
R is a polymer selected from the group consisting of polysiloxanes, polyvinylchlorides and polyurethanes; L is a linker or a direct bond; each R3 is independently selected from H, aminocarbonyl, C1-4 alkyl, aryl, heteroaryl, C1-4 alkyl aryl, C1-4 alkyl heteroaryl, cycloalkyl and heterocyclyl; and each R4 is independently selected from H, aminocarbonyl, C1-4 alkyl, aryl, heteroaryl, C1-4 alkyl aryl, C1-4 alkyl heteroaryl, cycloalkyl and heterocyclyl. |