Lithium Hydroxide → HCID 123320620, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of (2S,6R)-methyl 2-((tert-butoxycarbonyl)amino)-6-((1R,2S)-2-((4-methoxybenzyl)oxy)-1-((triisopropylsilyl)oxy)propyl)-9-methyldecanoate (8.76 g, 13.2 mmol) in a mixture of THF and H2O (125 mL/62.5 mL) was added LiOH (2.047 g, 85.0 mmol) and the resulting mixture was stirred for 24 h at 40° C. and then for another 24 h at room temperature. The reaction mixture was diluted with EtOAc and washed with 1.0 M aqueous HCl. The phases were separated and the aqueous phase was extracted with EtOAc. The combined organic phase was washed with brine, dried over MgSO4, and concentrated to furnish the title compound as a pale yellow oil (8.55 g, 100%): IR (neat) 2943, 2866, 1715, 1513, 1392, 1247, 1162, 1038 cm−1; 1H NMR (400 MHz, CDCl3) δ 7.26-7.20 (m, 2H), 6.88-6.82 (m, 2H), 4.96-4.83 (m, 1H), 4.51-4.31 (m, 2H), 4.31-4.20 (m, 1H), 3.88 (t, J=3.8 Hz, 1H), 3.80 (s, 3H), 3.52-3.43 (m, 1H), 1.91-1.72 (m, 2H), 1.68-1.46 (m, 5H), 1.45 (s, 9H), 1.44-1.19 (m, 2H), 1.18 (d, J=6.2 Hz, 3H), 1.18-0.98 (m, 24H), 0.86-0.80 (m, 6H); ESIMS m/z 674.6 ([M+Na]+).

Provenance & Evidence