Synthesis of peptide derivatives of 5-fluorouracil
摘要:
The preparation of di-, tetra- and pentapeptides carrying 5-fluorouracil as an a-substituent of a terminal glycine moiety is described. The dipeptide compounds were synthetized by addition of ethyl glyoxylate to N-(benzyl-oxycarbonyl)-amino acid amides, subsequent acetylation of resulting hydroxyl groups,displacement of acetate groups by 5-fluorouracil, and removal of protective group. Tetra- and pentapeptides were prepared from these dipeptides by coupling methods commonly used in peptide chemistry.
Conjugates of phenylalanine-glycine with antitumor substances
申请人:KUREHA CHEMICAL INDUSTRY CO., LTD.
公开号:EP0561303A2
公开(公告)日:1993-09-22
A phenylalanine-glycine derivative of the general formula (I):
wherein R represents a residue of an antitumor substance, or a salt or ester thereof, a process for preparation thereof, and a pharmaceutical composition containing the same are described.
The novel conjugate of the phenylalanine-glycine derivative and the antitumor substance exhibits superior antitumor activity in comparison with the case wherein an antitumor substance is administered singly or as a mixture with phenylalanine.
通式(I)的苯丙氨酸-甘氨酸衍生物:
其中 R 代表一种抗肿瘤物质的残留物或其盐或酯,描述了其制备方法和含有该衍生物的药物组合物。
苯丙氨酸-甘氨酸衍生物和抗肿瘤物质的新型共轭物与抗肿瘤物质单独给药或与苯丙氨酸混合给药的情况相比,具有更强的抗肿瘤活性。