N&PD Moderators: Skorpio | someguyontheinternet
Not bad and in theme :D .. question about it: if thiophene is bioisosteric to benzene does that make that benzothiophene like naphthalene and the above molecule probably PAL-287 like?
And if sulfur is in the same group as oxygen, then why isn't furan similarly bioisosteric?
I think benzofuran analogues of indoles may suffer from the problem that the 1-position nitrogen proton is missing for essential bonding interactions rather than something else, wonder if a sulfurane would solve that but those are pretty exotic..