Md. Preite et Ea. Ruveda, SYNTHESIS OF THE ZIEGLER KEY INTERMEDIATE AND RELATED PRECURSORS FOR THE SYNTHESIS OF FORSKOLIN AND ERIGEROL IN ENANTIOMERICALLY PURE FORM, Synthetic communications, 24(19), 1994, pp. 2809-2825
The Ziegler key intermediate 5, previously used in three total synthes
is of forskolin (1), and the intermediate 4, potentially useful for th
e synthesis of erigerol (2), were obtained in optically pure form by t
he resolution of the allylic alcohol 7a with R-(-)-O-methylmandelic ac
id.