Miyazaki R, Takada F, Kikuchi T, Oguro Y, Kamata M, Yukawa T, Kato K, Muto K, Yamaguchi J. 2
H-Thiazolo[4,5-
d][1,2,3]triazole: synthesis, functionalization, and application in scaffold-hopping.
Chem Sci 2024:d4sc03874f. [PMID:
39282646 PMCID:
PMC11391401 DOI:
10.1039/d4sc03874f]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Accepted: 09/03/2024] [Indexed: 09/19/2024] Open
Abstract
This manuscript unveils the synthesis of 2H-thiazolo[4,5-d][1,2,3]triazole (ThTz), an unprecedented [5-5]-fused heteroaromatic system, and established a scalable synthetic procedure for producing large quantities of the ThTz ring bearing a sulfone group on the thiazole ring. The sulfone moiety proves to be a versatile reactive tag, facilitating diverse transformations such as SNAr reactions, metal-catalyzed couplings, and radical-based alkylations. Furthermore, functionalization of the triazole ring highlights the potential of this newly developed heteroaromatic compound as a valuable heteroaryl building block, promoting scaffold hopping strategies in medicinal chemistry.
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