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. 2022 Mar 3;27(5):1677. doi: 10.3390/molecules27051677

Scheme 6.

Scheme 6

Synthesis of resolvin D2 via Sonogashira reaction. Reagents and conditions: i. Pd (PPh3)4, CuI,n-PrNH2,benzene, rt; ii. pyridinium, p-toluenesulfonate, CH3OH, rt; iii. 1N HCl, CH3OH/H2O, rt; iv. Zn (Cu/Ag), aq CH3OH, 40 °C; v. 1N LiOH, THF, 0 °C, then EtOAc, satd NaH2PO4.