3-(Benzyloxy)-9,9-dimethyl-4-oxo-4,6,7,9-tetrahydropyrimido[2,1-c][1,4]oxazine-2-carboxylic acid → HCID 21069994, compound

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Reaction Steps

The title compound can be prepared from intermediate 27, 3-(benzyloxy)-9,9-dimethyl-4-oxo-4,6,7,9-tetrahydropyrimido-[2,1-c][1,4]oxazine-2-carboxylic acid and (4-fluoro-2-(1,2,3-thiadiazol-4-yl)phenyl)methanamine. 1HNMR 400 MHz (CDCl3) δ (ppm): 1.66 (6H, s, 2×CH3), 4.02 (4H, m, 2×CH2), 4.57 (2H, d, J=6.6 Hz, NCH2), 5.32 (2H, s, OCH2), 7.18 (1H, m, aromatic), 7.27–7.34 (4H, m, aromatics), 7.54 (2H, m, aromatics), 7.74 (1H, dd, J=6.2 Hz and J=8.6 Hz, aromatic), 8.71 (1H, s, CH), 8.80 (1H, broad t, NH). HRMS (ESI+) calculated for C26H25FN5O4S [M+H+]: 522.1611. Found: 522.1601.

Provenance & Evidence