Patent ID: 8552175

Claim:
A compound having the general structure according to Formula I: Formula I: wherein: R is —N═C(H)—N(R 1 )(R 2 ), —C 6 H 4 —R 3 , —C 6 H 3 (R 3 )(R 4 ); or —C 6 H 2 (R 3 )(R 4 )(R 5 ); R 1 and R 2 are independently H, an alkyl group, an aryl group, or an aralkyl group, or R 1 and R 2 combined form a —(CH 2 ) n —, wherein n varies from 2 up to about 20, thereby forming a ring structure containing the N to which they are attached, or R 1 +R 2 combined form the linkage —(CH 2 ) n′ —X—(CH 2 ) n″ —, wherein n′ and n″ independently vary from 2 to about 20, and X is O, NR or S, provided, however, that the total of n′ and n″ does not exceed 24, and R 3 , R 4 and R 3 are independently an alkyl group, an aryl group, an alkoxy group, an aryloxy group, or a halogen atom, provided, however, that when R is —C 6 H 4 —R 3 , R 3 is not 2-chloro or 4-chloro, or when R is —C 6 H 3 (R 3 )(R 4 ), and R 3 and R 4 are positioned in a 2,4-orientation, R 3 and R 4 are, not both chloro, provided, however, that when R of Formula I is —N═C(H)—N(R 1 )(R 2 ), R 1 and R 2 are not both CH 3 or C 2 H 5 .