화학공학소재연구정보센터
Journal of the American Chemical Society, Vol.137, No.10, 3510-3519, 2015
The Daphniphyllum Alkaloids: Total Synthesis of (-)-Calyciphylline N
Presented here is a full account on the development of a strategy culminating in the first total synthesis of the architecturally complex daphniphyllum alkaloid, (-)-calyciphylline N. Highlights of the approach include a highly diastereoselective, intramolecular Diels-Alder reaction of a silicon-tethered acrylate; an efficient Stille carbonylation of a sterically encumbered vinyl triflate; a one-pot Nazarov cyclization/proto-desilylation sequence; and the chemoselective hydrogenation of a fully substituted diene ester.