4-Isocyanatobenzophenone → (R)-2-(3-(4-Benzoylphenyl)ureido)-3-carboxy-N,N,N-trimethylpropan-1-aminium acetate

Participants

Reaction Steps

According to the method described in example S11, aminocarnitine (40 mg) was reacted with (4-isocyanatophenyl)(phenyl)methanone to yield the title compound as a white solid (13.4 mg). 1H NMR (400 MHz, CD3OD): δ=7.76-7.68 (m, 4H), 7.66-7.55 (m, 3H), 7.55-7.48 (m, 2H), 4.66 (brs, 1H), 3.78 (dd, J=9.20 Hz, 13.60 Hz, 1H), 3.60-3.50 (m, 1H), 3.24 (s, 9H), 2.65-2.50 (m, 2H), 1.98 (s, 3H); MS ESI [M+H]+, calcd for [C21H26N3O4+H]+ 384.4 found m/z 384.2 (100)

Provenance & Evidence