1-(diphenylmethyl)-3-(2-hydroxy-4-methoxy-5-methylphenyl)-1,3-dihydro-2H-indol-2-one → HCID 59352372, compound

Participants

Reaction Steps

Following the procedure as described in EXAMPLE 2 and making non-critical variations using 3-(7-hydroxy-2,3-dihydro-1,4-benzodioxin-6-yl)-4,7-dimethoxy-1-[2-(2-methoxyethoxy)ethyl]-1,3-dihydro-2H-indol-2-one to replace 1-(diphenylmethyl)-3-(2-hydroxy-4-methoxy-5-methylphenyl)-1,3-dihydro-2H-indol-2-one, 4′,7′-dimethoxy-1′-[2-(2-methoxyethoxy)ethyl]-2,3-dihydrospiro[furo[2,3-g][1,4]benzodioxine-8,3′-indol]-2′(1H)-one was obtained (24%): mp 109-110° C.; 1H NMR (300 MHz, CDCl3) δ6.80 (d, J=9.0 Hz, 1H), 6.47 (d, J=9.0 Hz, 1H), 6.39 (s, 1H), 6.24 (s, 1H), 4.76 (ABq, 2H), 4.26-4.03 (m, 6H), 3.81 (s, 3H), 3.77-3.69 (m, 2H), 3.64-3.59 (m, 2H), 3.59 (s, 3H), 3.49-3.43 (m, 2H), 3.31 (s, 3H); 13C NMR (75 MHz, CDCl3) δ178.4, 155.6, 150.4, 144.1, 139.7, 137.6, 131.0, 120.2, 119.5, 113.4, 111.1, 106.1, 98.7, 71.9, 69.8, 68.8, 64.5, 63.8, 59.0, 57.5, 56.4, 56.0, 41.2; MS (ES+) m/z 457.9 (M+1).

Provenance & Evidence