Pyrido[2,3-d]pyrimidin-2(1H)-one,6-fluoro-7-(2-fluoro-6-hydroxyphenyl)-1-[4-methyl-2-(1-methylethyl)-3-pyridinyl]-4-[(2S)-2-methyl-4-(1-oxo-2-propen-1-yl)-1-piperazinyl]-,(1R)- cas 2296729-00-3 whiter powder