methyl 12-hydroxy-6-oxoindolo[2,1-b]quinazoline-12-carboxylate

methyl 3-[6-(3-methoxy-3-oxopropoxy)hexoxy]propanoate

methyl 5-hydroxyhexanoate

methyl 3-bromo-4,4-dimethoxybut-2-enoate

1-methoxy-3-methylsulfonyl-5-nitrobenzene