Potassium Carbonate → (1aR,3aR,5S,7aR,15aS,Z)-methyl 5-(2-(4-ethynylthiazol-2-yl)-7-methoxy-8-methylquinolin-4-yloxy)-9-methyl-3,8-dioxo-1a,2,3,3a,4,5,6,7,7a,8,9,10,11,12,13,15a-hexadecahydro-1H-benzo[c]cyclopropa[g][1,6]diazacyclotetradecine-1a-carboxylate

Participants

Reaction Conditions

Reaction Steps

Compound 44 (0.13 mmol) and 2-(4-ethynyl-thiazol-2-yl)-7-methoxy-8-methyl-quinolin-4-ol (0.14 mmol) 209b were dissolved in NMP (0.5 mL). K2CO3 (0.19 mmol) was added and the reaction mixture was heated at 70° C. for 2 days. The crude material was purified by silica gel chromatography (PE/EtOAc) to yield compound 45 as a beige solid. MS (ESI, EI+): m/z=657 (MH+).

Provenance & Evidence