6-溴-2,3-二氢-1-苯并呋喃-3-胺

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: In analogy to the procedures described for the preparation of intermediate A-1 [B] and for the preparation of example 12, (rac)-6-bromo-2,3-dihydro-benzofuran-3-ylamine (intermediate A-8 [B]) has been coupled with 1-tert-butoxycarbonylamino-cyclopropanecarboxylic acid to give [1-((rac)-6-bromo-2,3-dihydro-benzofuran-3-ylcarbamoyl)-cyclopropyl]-carbamic acid tert-butyl ester, which was then reacted with 4,4,4′,4′,5,5,5′,5′-octamethyl-2,2′-bi(1,3,2-dioxaborolane) and (1,1′-bis-diphenylphosphino)-ferrocene)palladium-(II)dichloride (1:1 complex with CH2Cl2) and subsequently with 3-(2-bromo-4-chloro-6-fluoro-phenyl)-5-methyl-[1,2,4]oxadiazole (intermediate B-2) to give the title compound as light yellow solid. MS: 529.2 (MH+, 1Cl).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: In analogy to the procedure described for the preparation of intermediate A-1 [B] and A-1 [C], (rac)-6-bromo-2,3-dihydro-benzofuran-3-ylamine has been coupled with 1-(2,2,2-trifluoroacetamido)cyclopropanecarboxylic acid (intermediate A-1 [A]) to give 1-(2,2,2-trifluoro-acetylamino)-cyclopropanecarboxylic acid ((rac)-6-bromo-2,3-dihydro-benzofuran-3-yl)-amide, which was subsequently reacted with 4,4,4′,4′,5,5,5′,5′-octamethyl-2,2′-bi(1,3,2-dioxaborolane) to yield the title compound as light brown solid. MS: 439.2 (M−H−).