1.
RSC Adv
; 11(16): 9756-9765, 2021 Mar 01.
Artículo
en Inglés
| MEDLINE
| ID: mdl-35423466
RESUMEN
Despite the pharmacological potential of the pyrazolo[3,4-c]pyrazoles, only a few methods of preparation and direct functionalization of this moiety have been described. We report herein a convenient design of new pyrazolo[3,4-c]pyrazoles with a high therapeutic impact. The effective chosen strategy consists of hydrazine condensations and C-N Ullmann-type cross-coupling reactions with microwave activation. Moreover, chemoselective bromination of the newly formed bipyrazoles followed by Suzuki-Miyaura cross-coupling reactions allowed the synthesis of a variety of modulated heterobicycles.