title: Alkyl streptozotocin analogues with improved biological activities.
abstract: Alkyl 16alpha- and -beta-glycosides of a series of N3-alkyl homologues of streptozotocin were synthesized from glucosamine hydrochloride. These compounds, when tested against ascites Sarcoma 180, Ehrlich ascites carcinoma, or leukemia L1210, exhibited potent antitumor activities, and antibacterial and diabetogenic activities were eliminated. Furthermore, the acute toxicities of these compounds were lower than that of streptozotocin. The methyl, ethyl, n-propyl, and n-butyl glycosides of streptozotocin, whether alpha- or beta-anomers, all showed higher antitumor activities than streptozotocin itself. The most active compound was found to be the methyl beta-streptozotocin.
mesh_terms: D000818:Animals; D001412:Bacillus subtilis / Q000187:drug effects; D001786:Blood Glucose / Q000378:metabolism; D002286:Carcinoma, Ehrlich Tumor / Q000188:drug therapy; D004755:Enterobacteriaceae / Q000187:drug effects; D013293:Enterococcus faecalis / Q000187:drug effects; D005260:Female; D007928:Lethal Dose 50; D007939:Leukemia L1210 / Q000188:drug therapy; D008297:Male; D051379:Mice; D008826:Microbial Sensitivity Tests; D011550:Pseudomonas aeruginosa / Q000187:drug effects; D051381:Rats; D012505:Sarcina / Q000187:drug effects; D012510:Sarcoma 180 / Q000188:drug therapy; D013211:Staphylococcus aureus / Q000187:drug effects; D013237:Stereoisomerism; D013311:Streptozocin / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000494:pharmacology / Q000627:therapeutic use; D013329:Structure-Activity Relationship
chemical_list: D001786:Blood Glucose; D013311:Streptozocin