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tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate; CAS No.: 552846-17-0; ChemShuttle s boronate-protected pyrazole enables diversity-oriented synthesis of JAK inhibitors. The tert-butyl carbamate withstands cross-coupling conditions, while the dioxaborolane group facilitates Suzuki reactions. Our parallel synthesis capabilities support rapid library generation for high-throughput screening campaigns.