(6-Fluoropyridin-3-yl)boronic acid → (11beta,16alpha,17beta)-17-Cyclopropylcarbonyl-11-[4-(6-fluoropyridin-3-yl)phenyl]-16-methylestra-4,9-dien-3-one

Participants

Reaction Steps

(11β,16α,17β)-11-(4-Bromophenyl)-17-cyclopropylcarbonyl-16-methylestra-4,9-dien-3-one and 6-fluoro-3-pyridinylboronic acid were used as described in example 1 step h. Purification by LCMS followed by lyophilisation gave the product (65% yield). 1H NMR (400 MHz, CDCl3): δ 0.34 (s, 3H), 0.80-2.85 (m, 24H), 4.45 (d, J=7 Hz, 1H), 5.80 (s, 1H), 7.00 (dd, J=8 and 3 Hz, 1H), 7.25-7.29 (m, 2H), 7.44-7.48 (m, 2H), 7.95 (dt, J=8 and 3 Hz, 1H), 8.41 (d, J=3 Hz, 1H).

Provenance & Evidence