Acetic Anhydride → HCID 46899292, compound

Participants

Reaction Steps

To a stirred solution of 57 mg (0.123 mmol) of (RS,SR)-C-{5-[benzenesulfonyl-(7-chloro-1,2,3,4-tetrahydro-cyclopenta[b]indol-2-yl)-fluoro-methyl]-[1,2,4]oxadiazol-3-yl}-methylamine in 5 mL of THF, 20 μL (0.123 mmol, 1 eq) of Huenig base and 11.6 μL (0.123 mmol, 1 eq) of acetic anhydride were added at 0° C. After 30 min., the reaction mixture was quenched by addition of an aqueous solution of NaHCO3 and extracted with CH2Cl2. The combined organic phases were dried over Na2SO4, filtered and evaporated. Column chromatography on silica gel gave 30 mg (48%) of (RS,SR)-N-{5-[benzenesulfonyl-(7-chloro-1,2,3,4-tetrahydro-cyclopenta[b]indol-2-yl)-fluoro-methyl]-[1,2,4]oxadiazol-3-ylmethyl}-acetamide as a light yellow solid, MS: 503 (MH+).

Provenance & Evidence