1-([1,3]oxazolo[4,5-b]pyridin-2-yl)-7-phenylheptan-1-one 1-oxazolo[4,5-b]pyridin-2-yl-7-phenyl-heptan-1-one 1-(2-oxazolo[4,5-b]pyridinyl)-7-phenylheptan-1-one 1-([1,3]oxazolo[4,5-b]pyridin-2-yl)-7-phenyl-heptan-1-one