Patent ID: 8609850

Claim:
A compound having the structure: wherein X is one of R 1 and R 2 are hydrogen, C 1 -C 6 straight or branched-chain alkyl, or a C 1 -C 6 straight or branched-chain alkyl further comprising a phenyl (C 6 H 5 ) group, that is unsubstituted or is methyl-, hydroxyl- or fluoro-substituted; R 4 is hydrogen, C 1 -C 6 straight or branched-chain alkyl, or a C 1 -C 6 straight or branched-chain alkyl further comprising a phenyl (C 6 H 5 ) group, that is unsubstituted or is methyl-, hydroxyl- or fluoro-substituted; R 3 is —NH—R 5 , —O—R 5 or —CH 2 —R 5 , and R 5 is an —N—O., —N—OH or N═O containing group; R is —C(O)—R 6 , —C(O)O—R 6 , or —P(O)—(R 6 ) 2 , wherein R 6 is C 1 -C 6 straight or branched-chain alkyl or C 1 -C 6 straight or branched-chain alkyl further comprising one or more phenyl (—C 6 H 5 ) groups that are independently unsubstituted, or methyl-, ethyl-, hydroxyl- or fluoro-substituted; and wherein the compound is not XJB-5-208.