1. M. Shibasaki, Y. Torisawa, and S. Ikegami, preceding paper in this issue.
2. The total synthesis of dl-coriolin
3. (a) We had already known that the separation of 1 and its regioisomer (4) is extremely difficult, M. Shibasaki, Y. Torisawa, and S. Ikegami, preceding paper in this issue.
4. Total synthesis of the carbon analog of Δ6-PGI1