allyl (E)-3-(3-ethyl-7-formyl-9-methyl-2-oxo-1,2,4,5-tetrahydrodipyrrolo[1,2-a:2',3'-d]azepin-8-yl)propanoate

3-(2-acetoxyethyl)-4-ethyl-2-tosylpyrrole

3-ethyl-4-[2-(mesyloxy)ethyl]-5-tosyl-1,5-dihydro-2H-pyrrol-2-one

2-bromo-3-ethyl-4-(2-hydroxyethyl)-5-tosylpyrrole

acetic acid 2-[5-bromo-4-ethyl-2-(toluene-4-sulfonyl)-1H-pyrrol-3-yl]-ethyl ester

methanesulfonic acid 2-[5-bromo-4-ethyl-2-(toluene-4-sulfonyl)-1H-pyrrol-3-yl]-ethyl ester

4-nitrohexane-1,3-diyl diacetate

acetic acid 3-hydroxy-4-nitro-hexyl ester

t-butyl (E)-8-(3-allyloxy-3-oxypropyl)-3-ethyl-9-methyl-2-oxo-1,2,4,5-tetrahydrodipyrrolo[1,2-a:2',3'-d]azepine-7-carboxylate