tert-Butyl piperazine-1-carboxylate → HCID 67094969, compound

Participants

Reaction Steps

The compound was prepared by analogy to Example 7, starting from commercially available 1-bromo-3-fluoro-2-methoxy-5-nitrobenzene, which was reacted with tert.butyloxycarbonyl-piperazine by analogy to preparation example 3.1 top yield 1-(N-boc-piperazin-4-yl)-3-fluoro-2-methoxy-5-nitrobenzene. Reduction of the nitro group to the corresponding aniline by analogy to preparation example 3.2, subsequent coupling with commercially available 3-difluoromethoxybenzenesulfonylchloride by analogy to preparation example 1.4, and final deprotection of the tert.-butoxycarbonyl group under acidic conditions by analogy to example 1 yielded the title compound.

Provenance & Evidence