Dimethyl Sulfide → N-{1-[(1-Formyl-2-methyl-propyl)-methyl-carbamoyl]-2,2-dimethyl-propyl}-3-methyl-2-methylamino-3-phenyl-butyramide

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반응 단계

A solution of N,β,β-trimethyl-L-phenylalanyl-N1-[(1S,2E)-3-carboxy-1-isopropylbut-2-enyl]-N1,3-dimethyl-L-valinamide (1.0 g) in methanol (20 mL) is added to 100 mL of methanol at −78° C. which had been treated with ozone until the solution is blue. The resulting colorless reaction mixture is treated with ozone at −78° C. until the blue color remained. After 5 min dimethylsulfide (2 mL) is added. The reaction mixture is allowed to warm to room temperature and then concentrated in vacuo to give the title compound as an oil. MS (ES): m/z 418.4 (M+H).

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