申请人:——
公开号:US04470970A1
公开(公告)日:1984-09-11
Highly purified fractions from human urine exhibiting antineoplastic activity and processes for their preparation are described. The fractions comprise biologically active, small sized, low molecular weight peptides which exert cytostatic and cytotoxic activity toward neoplastic cell cultures and human neoplastic diseases. The fractions have been termed antineoplaston fractions. An antineoplastic active peptide common to each of the various antineoplaston fractions has been isolated and identified as 3-[N-phenylacetylaminopiperidine]-2, 6-dion. A synthetic mechanism for the preparation of 3-[N-phenylacetylaminopiperdine]-2, 6-dion is also disclosed, involving a combination reaction between L-glutamine and phenylacetyl chloride. Also disclosed are the hydrolysis degradation products of 3-[N-phenylacetylaminopiperidine]-2, 6-dion which also exhibit antineoplastic activity when administered according to the general teachings presented in this disclosure.
本文介绍了从人类尿液中高度纯化的分离物,具有抗肿瘤活性和制备过程。这些分离物包括生物活性、小分子量的低分子量肽,对肿瘤细胞培养和人类肿瘤疾病表现出细胞毒和细胞抑制活性。这些分离物被称为抗肿瘤素分离物。一种存在于各种抗肿瘤素分离物中的抗肿瘤活性肽已被分离和鉴定为3-[N-苯乙酰氨基哌啶]-2,6-二酮。还披露了一种合成3-[N-苯乙酰氨基哌啶]-2,6-二酮的机制,涉及L-谷氨酰胺和苯乙酰氯之间的组合反应。此外,还披露了3-[N-苯乙酰氨基哌啶]-2,6-二酮的水解降解产物,当按照本公开的一般教导进行给药时,也表现出抗肿瘤活性。