Tetrahydrofuran → HCID 86700297, compound

Participants

Reaction Conditions

Reaction Steps

The crude (S)-ethyl 2-tert-butoxy-2-(7-(4-chlorophenyl)-5-methyl-2-(1,3,3-trimethyl-2-oxoindolin-5-yl)benzo[d]thiazol-6-yl)acetate from the reaction above was treated with 1.0 M aq NaOH (2 mL), THF (4 mL), and absolute EtOH (2 mL). The reaction was heated to 50° C. for 19 h. The reaction was cooled to 23° C., and filtered (0.45 micron teflon syringe filter). The filtrate was purified by reverse phase HPLC, eluting by 5-100% acetonitrile in H2O with 0.1% TFA to give the desired product. LCMS-ESI+: calc'd for C31H31ClN2O4S: 563.2, 565.2 (M+H+); Found: 563.3, 565.3 (M+H+). +). 1H NMR (400 MHz, CD3OD): δ 8.05-7.94 (m, 2H), 7.81 (s, 1H), 7.73-7.64 (m, 1H), 7.64-7.54 (m, 3H), 7.14 (d, J=8.2 Hz, 1H), 5.26 (s, 1H), 3.27 (s, 3H), 2.61 (s, 3H), 1.41 (s, 6H), 0.98 (s, 9H).

Provenance & Evidence