Microwave-Assisted Ring Opening of Epoxides: A General Route to the Synthesis of 1-Aminopropan-2-ols with Anti Malaria Parasite Activities
摘要:
A series of 1-aminopropan-2-ols were synthesized and evaluated against two strains of malaria, Plasmodium falciparum FCR3 (chloroquine-resistant) and 3D7 (chloroquine-sensitive). Microwave-assisted ring opening of epoxides (aryl and alkyl glycidyl ethers, glycidol, epichlorohydrin) with various amines without catalysts generated the desired library of beta-amino alcohols rapidly and efficiently. Most of the compounds showed micromolar potency against malaria, with seven of them having IC50 values between 1 and 10 mu M against both Plasmodium falciparum strains.
5‐dialkylaminomethyl‐2‐amino‐2‐oxazolines was prepared and screened for diuretic activity. These compounds were previously examined for their lipophilic behaviour using a reversed‐phase HPLC technique. The capacity factors, expressed as log k'w, were correlated with the partition coefficient log P. A QSAR analysis of the diuretic activity in relation with the lipophilicity was attempted for these structurally
制备了一系列 5-二烷基氨基甲基-2-氨基-2-恶唑啉并筛选了利尿活性。之前使用反相 HPLC 技术检查了这些化合物的亲脂行为。以log k'w 表示的容量因子与分配系数log P 相关。针对这些结构相关的化合物尝试对与亲脂性相关的利尿活性进行QSAR 分析。
[DE] TRIMERE MAKROCYCLISCH SUBSTITUIERTE BENZOLDERIVATE<br/>[EN] TRIMERIC MACROCYCLICALLY SUBSTITUTED BENZENE DERIVATIVES<br/>[FR] DERIVES DE BENZENE TRIMERES SUBSTITUES DE MANIERE MACROCYCLIQUE
申请人:SCHERING AG
公开号:WO2004074267A1
公开(公告)日:2004-09-02
Die Metallkomplexe der allgemeinen Formel (I), worin Hal für Brom oder Iod steht und A1 und A2 unterschiedliche Bedeutung haben, sind als Kontrastmittel geeignet.
The metal complexes of general formula I
1
in which Hal stands for bromine or iodine and A
1
and A
2
have different meanings, are suitable as contrast media.
申请人:CHINA NATIONAL MEDICINES GUORUI PHARMACEUTICAL CO. LTD.
公开号:US20150038704A1
公开(公告)日:2015-02-05
A method for preparing a Rivaroxaban intermediate I is presented, including the following step: in a non-protonic solvent, under the effect of lewis acid, performing cyclization reaction on 4-(4-phenyl isocyanate)morpholine-3-ketone (II) and (S)-epoxy compound (III), the reaction temperature ranging from 20° C. to 60° C., where R is amino replaced by amino protecting group. The preparation method of the present invention has a mild condition, a simple process, a low cost, and high efficiency; the product is easy to purify and the method is applicable to industrial production.