Methyl iodide → 4-[4-(Azetidine-1-carbonyl)-3-fluoro-phenoxy]-2-methoxymethyl-2-methyl-2,3-dihydro-benzofuran-6-carboxylic acid tert-butyl ester

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The title compound was prepared in a similar manner as described for Intermediate 201a, from 4-[4-(azetidine-1-carbonyl)-3-fluoro-phenoxy]-2-hydroxymethyl-2-methyl-2,3-dihydro-benzofuran-6-carboxylic acid tert-butyl ester (240a) and methyl iodide. 1H NMR (400 MHz, CDCl3) δ 7.86 (d, J=8.84 Hz, 2 H) 7.22 (s, 1 H) 7.07 (d, J=8.84 Hz, 2 H) 3.41-3.52 (m, 2 H) 3.40 (s, 3 H) 3.11 (d, J=16.67 Hz, 1 H) 2.76 (d, J=16.67 Hz, 1 H) 2.48 (td, J=7.89, 4.67 Hz, 1 H) 1.56 (s, 9 H) 1.46 (s, 3 H) 1.32-1.43 (m, 2 H) 1.00-1.12 (m, 2 H); LCMS for C26H30FNO6 m/z 472.20 (M+H)+.

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