Utilization derivative K252a in treating disorders of the peripheral or central nervous system, and production of cytokines.

In the present invention THERAPEUTIC METHODOLOGIES ARE PRESENTED IN WHICH uses DERIVATIVE REPLACED BY RINGS INDOLCARBAZOL K252a, leaving the derivative represented by formula (A). The compound is useful in the treatment of neuropathies peripheral nervous system degeneration CENTRAL AND Overproduction of cytokines. THE TYPICAL RELATED DISEASES ARE THE ABOVE Peripheral Neuropathy, ALZHEIMER'S DISEASE, AND PARKINSON'S DISEASE Autoimmune and allergic conditions.