A compound represented by the following formula or a salt thereof:
HN=C(R1)-X-Y-NH-CH(R2)-CO-Q
wherein R1 represents an amino group or other.; R2 represents a substituted benzyl group or other.; X represents a Pro residue, a substituted tyrosine residue or other.; Y represents an alanine residue or other.; and Q represents N-methyl-β-alanine or other. The compounds have analgesic effect, and can be used for the treatment of cancer pain etc.
下式所代表的化合物或其盐:
HN=C(R1)-X-Y-NH-CH(R2)-CO-Q
其中 R1 代表
氨基或其他;R2 代表取代的苄基或其他;X 代表 Pro 残基、取代的
酪氨酸残基或其他;Y 代表丙
氨酸残基或其他;Q 代表 N-甲基-
β-丙氨酸或其他。这些化合物具有镇痛作用,可用于治疗癌症疼痛等。