Synonyms: 1-Piperidinecarboxylic acid, 3-[7-[2-(cyclopropylmethoxy)-6-[(4-methoxyphenyl)methoxy]phenyl]-1,4-dihydro-2-oxo-2H-pyrido[2,3-d][1,3]oxazin-5-yl]-, 1,1-dimethylethyl ester;3-[7-[2-(Cyclopropylmethoxy)-6-[(4-methoxyphenyl)methoxy]phenyl]-1,4-dihydro-2-oxo-2H-pyrido[2,3-d][1,3]oxazin-5-yl]-1-piperidinecarboxylic acid tert-butyl ester