ethyl 3-[3-(3-ethoxy-3-oxoprop-1-ynyl)phenyl]prop-2-ynoate

3-sulfanylcarbonylbenzoic acid

6,9-dioxa-3,12-diazabicyclo[12.3.1]octadeca-1(18),14,16-triene

1-N,4-N-dihydroxy-1-N,4-N-diphenylbenzene-1,4-dicarboxamide

[3-(4-hydroxybenzoyl)phenyl]-(4-hydroxyphenyl)methanone