138188-00-8 6-(2-(Acetyloxy)phenyl)-1-phenylpyrazolo(3,4-d)(1,3)oxazin-4(1H)-one BRN 4823503 Pyrazolo(3,4-d)(1,3)oxazin-4(1H)-one, 6-(2-(acetyloxy)phenyl)-1-phenyl-