Selenodiazole-fused diacetamidopyrimidine, a selective fluorescence sensor for aliphatic monocarboxylates
摘要:
A designed sensor, selenodiazole-fused pyrimidine ring having two acetylamino groups at 2,4-positions has been synthesized for selective recognition of aliphatic monocarboxylate anions over a wide range of other anions. The recognition study has been carried out by UV-vis and fluorescence methods. A significant bathochromic shift of the fluorescence intensity of the receptor in the presence of carboxylate makes the receptor a discriminating sensor for aliphatic monocarboxylates. (C) 2010 Elsevier Ltd. All rights reserved.
[EN] A PROCESS FOR PREPARING INTERMEDIATES OF 10-PROPARGYL-10-DEAZAAMINOPTERIN (PRALATREXATE) SYNTHESIS AND THE INTERMEDIATES THEREOF [FR] PROCÉDÉ POUR LA PRÉPARATION D'INTERMÉDIAIRES DE SYNTHÈSE DE 10-PROPARGYL-10-DÉAZAAMINOPTÉRINE (PRALATREXATE) ET SES INTERMÉDIAIRES
Aminopterin dosage forms and methods for inflammatory disorders
申请人:Zebala A. John
公开号:US20060205729A1
公开(公告)日:2006-09-14
Embodiments of the present invention provide dosage forms and methods for treating a patient with an inflammatory disorder with a therapeutically effective amount of aminopterin, or a pharmaceutically acceptable salt thereof, that achieve efficacy without concomitant toxicity. Within certain embodiments, the present invention provides a method for treating an inflammatory disorder in a patient with uninterrupted doses of aminopterin.
Aminotetrahydropteridines and processes for manufacture thereof
申请人:Vasopharm Biotech GmbH
公开号:EP1669355A1
公开(公告)日:2006-06-14
The present invention relates to aminotetrahydropteridines and processes for the manufacture thereof. In particular, the present invention relates to a process for the manufacture of aminotetrahydrobiopterine. Said compound is an inhibitor of NO-synthase and may therefor be a valuable agent in medical applications. The manufacturing process starts from D-ribose, which is transformed in several reaction steps into an open chain osone structure with protected hydroxyl groups. Preferred protective groups are ether forming groups, in particular benzyl groups. Subsequent reaction with tetraaminopyrimidine yields hydroxyl-protected aminopteridines, which, after reduction to aminotetrahydropteridines and cleavage of the protective groups, yield the target compound. The invention also relates to said intermediates and a process for the manufacture thereof. Another subject-matter of the present invention is the use of D-ribose in said manufacturing processes.
A new, general and regioselective method for the synthesis of 2,6-disubstituted 4-aminopteridines
作者:Shahriyar Taghavi-Moghadam、Wolfgang Pfleiderer
DOI:10.1016/s0040-4039(97)01619-5
日期:1997.9
A new synthetic method for the preparation of 2,6-disubstituted 4-aminopteridines is described. Treatment of 2-substituted 4,5,6-triaminopyrimidines with α-ketoaldoximes in MeOH affords in a regioselective one-step reaction 2,6-disubstituted 4-aminopteridines in high yield.
cytotoxic activity (LC50), where 16c showed high cytotoxic activity, which was 10.0-fold higher than the standard anticancer agent adriamycin/doxorubicin against ten cancer cell lines. COMPARE analysis revealed that 16c may possess a mechanism of action through DNA binding that is similar to that of CCNU (lomustine). DNA binding studies indicated that 14g and 16c interact with the calf thymus DNA by intercalation
A new series of 6,6a,7,8-tetrahydro-5H-naphtho[1,2-e]pyrimido[4,5-b][1,4]diazepines 4a-f and 5a-f were efficiently synthesized in good yields from the reaction of E-2-arylidene-1-tetralones 1 and the respective tri- or tetraaminopyrimidines 2 or 3 under microwave irradiation using DMF as solvent and catalytic amounts of BF3·OEt2. Six of the obtained compounds were selected and tested by the National
高效合成了一系列新的6,6a,7,8-四氢-5 H-萘[1,2- e ]嘧啶基[4,5- b ] [1,4]二氮杂卓4a - f和5a - f。在以DMF为溶剂和催化量的BF 3 ·OEt 2的微波辐射下,E -2-芳基-1-四氢萘醌1与相应的三氨基或四氨基嘧啶2或3的反应具有良好的收率。选择了六种获得的化合物,并由美国国家癌症研究所(NCI-USA)对60种不同的肿瘤细胞系进行了测试。特别是化合物5a,5c和5e在SK-MEL-5细胞系中表现出显着的针对黑素瘤癌症的抗肿瘤活性。