2-Fluorophenyl isocyanate → (R)-Methyl 2-(3-(4-(3-(2-fluorophenyl)ureido)phenyl)isoxazole-5-carbothioamido)-3-methylbutanoate

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The title compound was prepared according to the procedure as set forth in example 151, except that 1-fluoro-2-isocyanatobenzene was used in place of 1-fluoro-3-isocyanatobenzene and (R)-methyl 2-(3-(4-aminophenyl)isoxazole-5-carbothioamido)-3-methylbutanoate was used in place of methyl 2-(3-(4-aminophenyl)isoxazole-5-carboxamido)-3-methylbutanoate to yield 65% of the title compound. MS (ESI): m/z 471(M+H)+; 1HNMR (DMSO-d6, 300 MHz): δ 10.935 (s, 1H), 9.355 (s, 1H), 8.640 (s, 1H), 8.161 (s, 1H), 7.891 (s, 2H), 7.634 (d, 3H), 7.256 (s, 1H), 7.162 (s, 1H), 7.038 (s, 1H), 4.835 (s, 1H), 3.689 (s, 3H), 2.507 (s, 1H), 1.049 (d, 6H).

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