N-benzyl dihydro-1,4 (dimethyl-4,4 oxazolyl-2)-3 pyridine

2-(1-benzyl-4-methyl-1,4-dihydropyridin-3-yl)-4,4-dimethyl-4,5-dihydrooxazole

p-nitrobenzyl (2R,3R)-2-(2'-formylmethylthio)-4-oxo-3-phenoxyacetylaminoazetidine-1-oxalate

三甲氧基磷

对硝基苯乙酮