Novel tricyclic heterocyclic sulfonamide derivatives and sulfonic ester derivatives which have each an antitumor action and are represented by the following general formula (I) and processes for producing the same are provided. These compounds have each an excellent antitumor activity. A sulfonamide derivative or a sulfonic ester derivative represented by the following general formula (I): ##STR1## G represents an aromatic 5- or 6-membered ring; L represents 0 or --N(R.sup.1)-- (R.sup.1 represents hydrogen or lower alky); and M represents a tricyclic structure selected from among the following ones; ##STR2## \x9brings A and B represent each an unsaturated 5- or 6-membered ring; X represents N(R.sup.2), (wherein R.sup.2 represents hydrogen or lower alkyl), or NHCO; Y represents O, S(O).sub.n, C(R.sup.3)(R.sup.4), C(O), N(R.sup.5), CH(R.sup.6)CH(R.sup.7), C(R.sup.8).dbd.C(R.sup.9), N(R.sup.10)C(O), N.dbd.C(R.sup.11), OCH(R.sup.12), S(O).sub.n CH(R.sup.13) or N(R.sup.14)CH(R.sup.15); Z represents nitrogen or C(R.sup.16) (n represents 0, 1 or 2, R.sup.3 to R.sup.13, R.sup.15 and R.sup.16 each represents hydrogen or lower alkyl, and R.sup.14 represents hydrogen, lower alkyl or lowver acyl.)!}
提供了一种新型
三环杂环
磺胺衍
生物和
磺酸酯衍
生物,具有抗肿瘤作用,其通式(I)如下所示,并提供了生产这些化合物的方法。这些化合物具有出色的抗肿瘤活性。通式(I)表示的
磺胺衍
生物或
磺酸酯衍
生物如下:G代表芳香5-或6-成员环;L代表0或--N(R1)--(R1代表氢或较低烷基);M代表以下之一的
三环结构;A和B分别代表不饱和的5-或6-成员环;X代表N(R2),(其中R2代表氢或较低烷基),或NHCO;Y代表O、S(O)n、C(R3)(R4)、C(O)、N(R5)、CH(R6)CH(R7)、C(R8)=C(R9)、N(R10)C(O)、N=C(R11)、OCH(R12)、S(O)nCH(R13)或N(R14)CH(R15);Z代表氮或C(R16)(n代表0、1或2,R3至R13、R15和R16分别代表氢或较低烷基,R14代表氢、较低烷基或较低酰基)。}