申请人:KYOWA HAKKO KOGYO KABUSHIKI KAISHA
公开号:EP0214303A1
公开(公告)日:1987-03-18
Mitomycin derivatives represented by general formula (I), wherein X represents X1 or X2, X1 represents an alkyl group, a cycloalkyl group (optionally substituted), a pyridyl group, an unsubstituted or substituted phenyl group, a residue of an amino acid having a thiol group or a dipeptide or tripeptide residue containing the amino acid excluding the thiol group, X2 represents a group represented by formula (II), (wherein A, represents -(CH2)m- (wherein m represents an integer of 3 to 12) or -(CH2CH20)n-CH2CH2- (wherein n represents an integer of 1 to 5), Y, Z, R,, and R2 are the same as defined with (1), provided that A represents -(CH2)ℓ- (wherein ℓ represents an integer of 3 to 8) when X is X, and A represents A, when X is X2, Y and Z each represents H or methyl, and one of R, and R2 represents a carbamoyloxymethyl group and the other represents H when X is X1, and one of them represents a carbamoyloxymethyl group and the other represents H, or both are bound to each other to form an exo-methylene group (= CH2) when X is X2. These compounds are superior to known mitomycin derivatives having two methylene units between a nitrogen atom at 7-position and a SS grouping in at least one of Cl value (chemotherapeutic index), reduction of side effects, and solubility in water.
由通式(I)代表的丝裂霉素衍生物,其中 X 代表 X1 或 X2,X1 代表烷基、环烷基(任选取代的)、吡啶基、未取代或取代的苯基、具有硫醇基的氨基酸残基或含有不含硫醇基的氨基酸的二肽或三肽残基, X2 代表由式(II)表示的基团,(其中 A 代表-(CH2)m-(其中 m 代表 3 至 12 的整数)或-(CH2CH20)n-CH2CH2-(其中 n 代表 1 至 5 的整数)、Y、Z、R 和 R2 与 (1) 所定义的相同,条件是当 X 为 X 时,A 代表-(CH2)ℓ-(其中 ℓ 代表 3 至 8 的整数),当 X 为 X2 时,A 代表 A,Y 和 Z 各自代表 H 或甲基,R、和 R2 其中一个代表氨基甲酰氧甲基,另一个代表 H,当 X 为 X1 时;当 X 为 X2 时,其中一个代表氨基甲酰氧甲基,另一个代表 H,或两者相互结合形成外亚甲基(=CH2)。这些化合物在 Cl 值(化疗指数)、减少副作用和水溶性等至少一个方面优于在 7 位氮原子和 SS 基团之间具有两个亚甲基单元的已知丝裂霉素衍生物。