2-Methanesulfonylbenzene-1-sulfonyl chloride → 1-({[(Tert-butoxy)carbonyl]({[(1,3-diethoxypropan-2-yl)oxy]carbonyl}oxy)-amino}sulfonyl)-2-methanesulfonylbenzene

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1-({[(tert-Butoxy)carbonyl]({[(1,3-diethoxypropan-2-yl)oxy]carbonyl}oxy)-amino}sulfonyl)-2-methanesulfonylbenzene (102) is prepared from 2-{[({[(tert-butoxy)carbonyl]amino}oxy)carbonyl]oxy}-1,3-diethoxypropane and 2-methylsulfonyl benzene sulfonyl chloride according to Scheme 11. (2.3 g, 47%), 1H NMR (500 MHz, CHLOROFORM-d) δ ppm 8.39 (2H, ddd, 12.2, 7.5, 1.5 Hz), 7.84 (2H, m), 5.06 (1H, quin, 5.1 Hz), 3.68 (4H, t, 4.9 Hz), 3.48-3.61 (4H, m), 1.43 (9H, s), 1.27 (3H, t, 7.2 Hz), 1.19 (3H, t, 6.9 Hz).

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