Synthesis of 5-Substituted 5-Hydroxy-2-pyrrolidones, Metabolites of the Antipsychotic Benzamide Remoxipride.
摘要:
This paper describes the synthesis of 5-[(3-bromo-2,6-dimethoxybenzamido)-methyl]-5-hydroxy-2-pyrrolidon e (3) and its 1-ethyl analogue 2, two urinary metabolites of the dopamine D-2 antagonist remoxipride [1, (S)-3-bromo-N-[(1-ethyl-2-pyrrolidinyl)methyl]-2, 6-dimethoxybenzamide]. Two synthetic schemes leading to a common intermediate, 5-benzamido-4-oxopentanoic acid 4, were developed. This key intermediate permits conversion into either metabolite. Reaction of 4 with isobutyl chloroformate furnished a mixed carbonic anhydride, which upon treatment with ethylamine or ammonia gave the 4-oxopentanamides 5 and 6, respectively. Ring-closure afforded the corresponding 5-hydroxy-2-pyrrolidones 2 and 3.
Synthesis of 5-Substituted 5-Hydroxy-2-pyrrolidones, Metabolites of the Antipsychotic Benzamide Remoxipride.
摘要:
This paper describes the synthesis of 5-[(3-bromo-2,6-dimethoxybenzamido)-methyl]-5-hydroxy-2-pyrrolidon e (3) and its 1-ethyl analogue 2, two urinary metabolites of the dopamine D-2 antagonist remoxipride [1, (S)-3-bromo-N-[(1-ethyl-2-pyrrolidinyl)methyl]-2, 6-dimethoxybenzamide]. Two synthetic schemes leading to a common intermediate, 5-benzamido-4-oxopentanoic acid 4, were developed. This key intermediate permits conversion into either metabolite. Reaction of 4 with isobutyl chloroformate furnished a mixed carbonic anhydride, which upon treatment with ethylamine or ammonia gave the 4-oxopentanamides 5 and 6, respectively. Ring-closure afforded the corresponding 5-hydroxy-2-pyrrolidones 2 and 3.
[EN] THERAPEUTICALLY ACTIVE COMPOUNDS AND THEIR METHODS OF USE<br/>[FR] COMPOSÉS THÉRAPEUTIQUEMENT ACTIFS ET LEURS MÉTHODES D'UTILISATION
申请人:AGIOS PHARMACEUTICALS INC
公开号:WO2015010297A1
公开(公告)日:2015-01-29
Provided are methods of treating a cancer characterized by the presence of a mutant allele of IDH1/2 comprising administering to a subject in need thereof a compound described here.
The present invention provides a group of novel SMA derivatives and a covalent conjugate of the derivatives and an active substance. More specifically, the present invention provides: an SMA derivative which contains (i) a styrene-maleic acid copolymer (SMA) and (ii) a side chain (b) that contains a functional group (a) selected from among —NH2, —SH, —OH, —COOH, —NH—(C═NH)—NH
2
and —C(CH
2
—OH)
3
and introduced into a carboxyl group of a maleic acid residue of the SMA via an amide bond or an ester bond, and wherein when a plurality of side chain (b) is introduced into the SMA, the side chains (b) may be identical or different from each other; and a conjugate of this SMA derivative and an active substance.
Prodrugs of 5-Aminolevullinic Acid for Photodynamic Therapy
作者:Joris Kloek、Gerard M.J Beijersbergen van Henegouwen
DOI:10.1111/j.1751-1097.1996.tb01868.x
日期:1996.12
derivatives of ALA. ALA prodrugs are expected to have better diffusing properties as a result of their enhanced Jipophilicity and are converted into the parent ALA after enzymatichydrolysis. In this report, results are presented of the synthesis of a number of ALA derivatives. The ALA prodmgs were investigated regarding the optimum conditions for cell penetration and PPIX formation in an in vitro cellular
摘要——使用 5-氨基乙酰丙酸 (ALA) 作为原卟啉 IX (PPIX) 前体用于光动力疗法 (PDT) 在短时间内变得非常流行。然而,尽管有优点,ALA 也有缺点;由于其低亲油性,它显示出通过生物膜扩散的能力差。因此,必须施用高剂量的 ALA 以将受累组织中的 PPIX 增加到足以进行 PDT 的水平。这个问题的一个可能解决方案是使用 ALA 的衍生物。由于其增强的亲油性,预计 ALA 前药具有更好的扩散特性,并在酶促水解后转化为母体 ALA。在本报告中,介绍了许多 ALA 衍生物的合成结果。在体外细胞测试系统中,研究了 ALA 前体的细胞渗透和 PPIX 形成的最佳条件。结果表明,与 ALA 相比,几种产品确实显着提高了 PPIX 的积累量。最后,最有希望的前药在动物模型中进行了测试,并且在这些条件下也显示出增加的 PPIX 形成。
5-(4-Carboxyphenyl)-10,15,20-tris(phenyl)-porphyrinato chlorido gallium(III) (2) was synthesized and then linked to ethyl ester δ-aminolevulinic acid to form 3. There was no shift in Soret band following conjugation. The fluorescence and singlet oxygen generating behavior of the porphyrins were also investigated. The highest singlet oxygen quantum yield (ΦΔ) obtained was that of 3. Complexes 2 and 3 as well as metal