Certain trisubstituted pyrrolopyrimidine nucleosides are prepared from toyocamycin and have shown antitumor activity against L1210 and P388 murine leukemia. The particular compounds of interest are selected from the following structural formula: ##STR1## where X is halo Y is halo; --NH.sub.2 ; --SH, --SR (where R is lower alkyl, benzyl); --OR (where OR is methoxy or alkoxy or where alk is C1-C6); amino (where the amino is --NH.sub.2, -alkyl amino or -dialkyl amino and alkyl is C1-C6); gamma gamma dimethyl allyl amino; benzyl amino; phenyl amino; seleno Z is CN; CXNH.sub.2 where X is .dbd.0, .dbd.S, or .dbd.Se, .dbd.NH, .dbd.NHNH.sub.2, .dbd.NOH. OR Z is = --CH.sub.2 NH.sub.2, --COR.dbd.NH Rib.dbd..beta.-D-ribofuranosyl Preferred members of this group of compounds are shown by the following structural formula: ##STR2## where X is Cl Y is Cl or NH.sub.2 Z is CN, CONH.sub.2, or C.dbd.NOH--NH.sub.2 These compounds are further identified as NSC #145387 (Compound 5) ##STR3## NSC #177369 (Compound 6) ##STR4## NSC #182864 (Compound 8) ##STR5## NSC #180526 (Compound 10) ##STR6## These compounds at dosages of 13 - 200 mg/kg of body weight administered every other day on the standard six-day schedule showed activity against both L1210 and P388 murine leukemia (Protocol 11, National Institutes of Health, November 11, 1972).
某些三取代
吡咯喹
嘧啶核苷可以从托儿卡霉素中制备,并已显示出对L1210和P388小鼠白血病的抗肿瘤活性。感兴趣的特定化合物从以下结构式中选择:其中X是卤素,Y是卤素; --NH.sub.2; --SH,--SR(其中R是较低的烷基,苄基); --OR(其中OR是甲氧基或烷氧基,或者其中alk是C1-C6);
氨基(其中
氨基是--NH.sub.2,-烷基
氨基或-二烷基
氨基,且烷基是C1-C6); gamma gamma 二甲基
丙烯基
氨基; 苄基
氨基; 苯基
氨基;
硒醇Z是CN; CXNH.sub.2,其中X是.dbd.0,.dbd.S或.dbd.Se,.dbd.NH,.dbd.NHNH.sub.2,.dbd.NOH。或Z是= --CH.sub.2 NH.sub.2,--COR.dbd.NH Rib.dbd..beta.-D-ribofuranosyl。该化合物组的优选成员由以下结构式表示:其中X是Cl,Y是Cl或NH.sub.2,Z是CN,CONH.sub.2或C.dbd.NOH--NH.sub.2。这些化合物在标准的六天计划中,每隔一天以13-200毫克/千克的剂量给予,对L1210和P388小鼠白血病均显示出活性(协议11,美国国立卫生研究院,1972年11月11日)。