I just read what Sinclair told The New Republic in March 2013.
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A GSK spokeswoman says the company will continue to work on sirtuin activators, but says that aside from SRT2104, there are none in the pipeline. Also, she adds, “they don’t have anything to do with red wine.”
Says Sinclair, who is still a scientific adviser to GSK: “We know the science is real; the problem now is to push it over the goal line. If they don’t end up as drugs in our lifetime, it's not the fault of scientists, and more of a business decision.”
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So he thinks GSK may not sell SRT 2104 because resveratrol already exists? Another company might have another superior pill?