| abstract |
PCT No. PCT/US92/07730 Sec. 371 Date Jul. 20, 1994 Sec. 102(e) Date Jul. 20, 1994 PCT Filed Sep. 18, 1992 PCT Pub. No. WO93/10073 PCT Pub. Date May 27, 1993.The present invention relates to novel acyclic ethylenediamine derivatives of nitrogen containing heterocyclic compounds, and specifically, to compounds of the formula <IMAGE> I wherein R1, R2, R3, R4, R5 and R6 are defined as in the specification. It also relates to novel intermediates used in the synthesis of such derivatives. Compounds of the formula I and their pharmaceutically acceptable salts are useful in the treatment of inflammatory and central nervous system disorders, as well as other disorders. |