Patent ID: 7625871

Claim:
A compound as depicted in formula (I), wherein formula (I) is as follows: wherein: R 1 is D-ribofuranosyl, 2′-deoxy-D-ribofuranosyl, or 5′-O-acetyl-D-ribofuranosyl; R 2 is —NR 8 R 9 where R 8 and R 9 may match or differ and are selected from alkyl (C 1-10 ), alkenyl (C 1-10 ), aryl, arylalkyl; or R 2 is halogen, cyano, mercaptan, alkylmercaptan, or alkoxy (C 1-10 ); R 3 is cyano; C═NR 12 where R 12 may be alkyl or OCH 3 ; —CXNH 2 where X may be ═S, ═O, ═NH, ═N—NH 2 , ═NOH, or ═N—NHR; —RC═O where R may be H, or alkyl (C 1-10 ); CH 2 —O—R where R may be H, or alkyl (C 1-10 ); thienyl, furanyl, imidazolyl, tetrazolyl, imidazolidinyl, thiazolyl, triazolyl, nitro, or thiosemicarbazono; and R 4 -R 7 are: i) halogens that may match or differ; ii) hydrogen; iii) nitro groups or azido group with halogens in different juxtapositions; or iv) different alkyl (C 1-6 ) groups bearing halogen, nitro or azido groups.