Pyrroles and other heterocycles as inhibitors of P38 kinase
摘要:
Investigation of furans, pyrroles and pyrazolones identified 3-pyridyl-2,5-diaryl-pyrroles as potent, orally bioavailable inhibitors of p38 kinase. 3-(4-pyridyl-2-(4-fluoro-phenyl)-5-(4-methylsulfinylphenyl)-pyrrole (L-167307) reduces secondary paw swelling in the rat adjuvant arthritis model: ID50 = 7.4 mg/kg/b.i.d. (C) 1998 Elsevier Science Ltd. All rights reserved.
A DBU-mediated aldol condensation-dehydration sequence has been used to prepare a series of synthetically important substituted 2- and 3-azachalcones. Michael products that typically accompany this sequence with inorganic bases were not observed in this protocol of high practical value.