Water-soluble derivatives of lipophilic drugs

摘要

A water-soluble reference standard is useful for immunoassays of a lipophilic drugs. The reference standard is a compound of formula (I): G-(L)n-Y (I); where G is a lipophilic drug; L is a linker which is an alkyl group or heteroalkyl group containing from 1 to 20 carbon atoms; n is 0 or 1; and Y is a water-solubilizing group such as -SO3-, -NR-SO3-, -P(=O)(OH)(O-), or -O-P(=O)(OH)(O-); where R is H or an alkyl group of 1 to 10 carbon atoms.