abstract |
Hydrazono-malonitrile derivatives of formula I act as phosphodiesterase IV inhibitors and treat osteoporosis, rheumatoid arthritis, multiple sclerosis, diabetes, inflammatory reactions, allergies, asthma, autoimmune diseases, myocardial diseases and AIDS Can be used at:n n n [Formula I]n n n n n n n n Wherein R 1 , R 2 , R 3 , R 3 ′ and R 4 have the meaning set forth in claim 1. |