(2021/01/25)
(2019/09/04)
p. 564 - 567
(2015/03/04)4-methoxyacetoacetic acid methylester
(3S,11aR)-3-methyl-6-(methyloxy)-5,7-dioxo-2,3,5,7,11,11a-hexahydro[1,3]oxazolo[3,2-a]pyrido[1,2-d]pyrazine-8-carboxylic acid
2,4-Difluoro-benzylamine
methyl 2-[(dimethylamino)methylene]-4-methoxy-3-oxobutanoate
methyl 2-(((2,2-dimethoxyethyl)amino)methylene)-4-methoxy-3-oxobutanoate