Sodium Hydroxide → HCID 58764043, compound
Reaction equation
[CH:1]1([C:6]2([CH2:14][CH2:15][C:16]3[CH:25]=[CH:24][C:19]([C:20]([O:22]C)=[O:21])=[C:18]([F:26])[CH:17]=3)[CH2:11][C:10](=[O:12])[CH2:9][C:8](=[O:13])[O:7]2)[CH2:5][CH2:4][CH2:3][CH2:2]1.[OH-].[Na+]>Cl>[CH:1]1([C:6]2([CH2:14][CH2:15][C:16]3[CH:25]=[CH:24][C:19]([C:20]([OH:22])=[O:21])=[C:18]([F:26])[CH:17]=3)[CH2:11][C:10](=[O:12])[CH2:9][C:8](=[O:13])[O:7]2)[CH2:5][CH2:4][CH2:3][CH2:2]1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
Methyl 4-[2-(2-cyclopentyl-4,6-dioxotetrahydro-2H-pyran-2-yl)ethyl]-2-fluorobenzoate (example B(5)) (300 mg) was treated with 4N NaOH (10 ml) and stirred for 4 hrs at room temperature. The mixture was then acidified with 1N HCl (20 ml) and the product was extracted with ethyl acetate (2×20 ml). The combined organic layers were dried over magnesium sulfate and concentrated to a solid. The solid was recrystallised from diethyl ether to afford the title compound as a white solid (120 mg). 1H NMR (300 MHz, MeOD): δ 1.38-2.30 (m, 11 H), 2.80-3.12 (m, 6 H), 6.91 (d, J=7.19 Hz, 1 H), 7.17 (m, 1 H), 7.86 (d, J=719 Hz, 1 H)