Diisopropylethylamine → HCID 76902534, compound

Participants

Reaction Conditions

Reaction Steps

A solution containing the product from Example 2C (0.020 g, 0.038 mmol) in THF (0.4 mL) was treated with the product from Example 55B (0.038 mmol), DEPBT (0.016 g, 0.054 mmol), and N,N-diisopropylethylamine (0.032 mL, 0.184 mmol), stirred at 25° C. for 2 hours, and partitioned between ethyl acetate and 10% Na2CO3 solution. The organic phase was washed with additional 10% Na2CO3 solution and brine, dried over MgSO4, filtered and concentrated. The residue was purified by reversed phase chromatography on a C18 column eluting with 5-100% acetonitrile in water (0.1% TFA) to give the title compound (0.011 g, 38% yield). 1H NMR (300 MHz, DMSO-d6), δ ppm 0.81 (s, 9 H), 0.84 (s, 9 H), 1.52 (m, 2 H), 2.56 (m, 1 H), 2.74 (m, 3 H), 3.26 (s, 3 H), 3.49 (s, 3 H), 3.66 (m, 1 H), 3.82 (m, 3 H), 4.03 (m, 1 H), 4.16 (m, 1 H), 4.31 (d, J=9.56 Hz, 1 H), 4.83 (d, J=5.88 Hz, 1 H), 6.62 (d, J=9.56 Hz, 1 H), 7.14 (m, 8 H), 7.31 (m, 1 H), 7.85 (m, 6 H), 8.63 (d, J=4.41 Hz, 1 H).

Provenance & Evidence