Patent ID: 8288551

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 â€”NHâ€”R 5 ; R is â€”C(O)â€”R 6 , â€”C(O)Oâ€”R 6 , or â€”P(O)â€”(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 (â€”C 6 H 5 ) groups that are independently unsubstituted, or methyl-, ethyl-, hydroxyl- or fluoro-substituted; R 5 has the structure and wherein the compound is not XJB-5-208.