Patent ID: 6528675
Filing Date: 2003-03-04
Classification: C07C,C07D,C07K

Abstract:
A compound having the formula in which:R1 is an aldehyde or ketone group that is optically detectable by fluorescence emission, UV light absorptivity or colorimetry; R2 is a member selected from the group consisting of H, C1-C2 alkyl, benzyl, and substituted benzyl; and R3 is a member selected from the group consisting of alkyl, substituted alkyl, aralkyl, substituted aralkyl, phosphate, sulfate, carbohydrate residues, substituted carbohydrate residues, and â€ƒin which R4 is a member selected from the group consisting of alkyl, substituted alkyl, aralkyl, substituted aralkyl, oxiranylalkoxy, substituted oxiranylalkoxy, alkylamino, substituted alkylamino, peptidylamino, cycloalkylamino, substituted cycloalkylamino, oxiranylamino, substituted oxiranylamino, alkoxy, and substituted alkoxy; R1 being selected such that the optical detectability of â€ƒis measurably greater than the optical detectability of