3,4-Difluorobenzeneboronic acid → HCID 11162904, compound

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Reaction Steps

The title compound (70 mg) was prepared according to Example 180 using 209 mg of 2-cyclopentyl-3-trifluoromethanesulfonyloxy-4,5,7,8-tetrahydro-2H-1,2,6-triaza-azulene-6-carboxylic acid tert-butyl ester (Example 180, Step A) and 218 mg of 3,4-difluorophenylboronic acid. MS (ESI): exact mass calculated for C18H21F2N3, 317.17. found, m/z 318.4 [M+H]+. 1H NMR (500 MHz, CD3OD): 7.50-7.45 (m, 1H), 7.36-7.32 (m, 1H), 7.18-7.17 (m, 1H), 4.49 (m, 1H), 3.43-3.41 (m, 2H), 3.21-3.19 (m, 2H), 2.80-2.78 (m, 2H), 2.15-1.87 (m, 6H), 1.66-1.61 (m, 2H).

Provenance & Evidence