Seems like macrolones have been in the literature for over a decade. I wonder why there hasn't been any progress in commercializing them. Hospitals could really

Seems like macrolones have been in the literature for over a decade. I wonder why there hasn't been any progress in commercializing them. Hospitals could really use these. Is it that these are predicted mechanisms of action, but that a working structure with high efficacy hasn't been elucidated?