Trifluoroacetic acid → (1R,2S)-2-(3-((E)-2-(2,3,4,5-tetrahydrobenzo[f][1,4]oxazepin-7-yl) vinyl)-1H-indazol-6-yl)spiro[cyclopropane-1,3'-indolin]-2'-one 2,2,2-trifluoroacetate

Participants

Reaction Steps

The title compound was synthesized according to the method of Example A51B, by using (1R,2S)-2-(3-iodo-1H-indazol-6-yl)spiro[cyclopropane-1,3′-indolin]-2′-one (105 mg, 0.27 mmol) and (E)-tert-butyl 7-(2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)vinyl)-2,3-dihydrobenzo[f][1,4]oxazepine-4(5H)-carboxylate (130 mg, 0.32 mmol). The residue from the reaction was dissolved into CH2Cl2 (5 mL) and TFA (0.2 mL) was added and the mixture was stirred for 1 h and concentrated to dryness. Purification by preparative HPLC gave the title compound as a cream solid (40 mg, 30%). 1H NMR (400 MHz, CD3OD) δ 7.97 (d, J=8.2 Hz, 1H), 7.68-7.64 (m, 2H), 7.50-7.39 (m, 3H), 7.16 (d, J=8.2 Hz, 1H), 7.07-7.01 (m, 2H), 6.94 (d, J=7.8 Hz, 1H), 6.57 (t, J=7.6 Hz, 1H), 5.98 (d, J=7.4 Hz, 1H), 4.45 (s, 2H), 4.39 (br. s, 2H), 3.68 (br. s, 2H), 3.39-3.33 (m, 1H) 2.25-2.16 (m, 2H); MS ESI 449.3 [M+H]+, calcd for [C28H24N4O2+H]+ 449.2.

Provenance & Evidence