Thiophene-3-boronic acid → HCID 59752678, compound

Participants

Reaction Steps

The title compound (83 mg) was prepared according to Example 215 using 204 mg of 2-(tert-butyl)-3-trifluoromethanesulfonyloxy-4,5,7,8-tetrahydro-2H-1,2,6-triaza-azulene-6-carboxylic acid tert-butyl ester (Example 215, Step A) and 177 mg of 3-thiopheneboronic acid. MS (ESI): exact mass calculated for C15H21N3S, 275.15. found, m/z 276.4 [M+H]+. 1H NMR (500 MHz, CD3OD): 7.59-7.57 (m, 1H), 7.43-7.42 (m, 1H), 7.08-7.06 (m, 1H), 3.38-3.36 (m, 2H), 3.25-3.23 (m, 2H), 3.13-3.11 (m, 2H), 2.56-2.54 (m, 2H), 1.43 (s, 9H).

Provenance & Evidence