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. 2024 Jan 19;15(2):302–309. doi: 10.1021/acsmedchemlett.3c00566

Scheme 3. Synthesis of Indazoles 14 and 16.

Scheme 3

(a) LiOH, THF, H2O, rt.; (b) dimethylamine hydrochloride, HATU, DIPEA, DMF, rt, 26% over 2 steps; (c) LiAlH4, THF, rt, 14%; (d) dimethylamine hydrochloride, HATU, DIPEA, THF, DMF, rt; (e) LiAlH4, THF, rt, 11% over 2 steps.