Ethyl benzoylacetate → (8-Ethyl-1-phenyl-1,3,4,9-tetrahydro-pyrano[3,4-b]indol-1-yl)-acetic acid ethyl ester

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Reaktionsschritte

Following the procedure of example 22.A. except using 2-(7-ethyl-1H-indol-3-yl)-ethanol as the 3-indolethanol component and ethyl benzoylacetate as ketone component afforded the title compound as a solid. 1H NMR (500 MHz, CDCl3) δ 10.05 (br, 1H), 7.42 (d, 1H), 7.28 (m, 5H), 7.12 (m, 2H), 3.96 (m, 3H), 3.60 (m, 1H), 3.43 (d, 1H), 3.22 (d, 1H), 3.05 (m, 3H), 2.65 (dd, 1H), 1.42 (d, 3H), 1.03 (t, 3H); ESI (−) MS m/e=362 (MH−).

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