Total Synthesis of (+)-Calyculin A and (−)-Calyculin B
作者:Amos B. Smith、Gregory K. Friestad、James J.-W. Duan、Joseph Barbosa、Kenneth G. Hull、Makoto Iwashima、Yuping Qiu、P. Grant Spoors、Emmanuel Bertounesque、Brian A. Salvatore
DOI:10.1021/jo981813x
日期:1998.10.1
Total Synthesis of (+)-Calyculin A and (−)-Calyculin B: Cyanotetraene Construction, Asymmetric Synthesis of the C(26−37) Oxazole, Fragment Assembly, and Final Elaboration
作者:Amos B. Smith、Gregory K. Friestad、Joseph Barbosa、Emmanuel Bertounesque、James J.-W. Duan、Kenneth G. Hull、Makoto Iwashima、Yuping Qiu、P. Grant Spoors、Brian A. Salvatore
DOI:10.1021/ja992135e
日期:1999.11.1
asymmetric synthesis of the C(26−37) oxazole, fragment assembly and final elaboration to (+)-1 and (−)-2. Highlights of the synthesis include: application of a one-pot three-component Suzuki reaction for the construction of phosphonate A, a bifunctional triene precursor of the light sensitive C(1−8) cyanotetraene subunit, an asymmetric synthesis of the C(26−32) oxazole (−)-D, exploiting the Silks−Odom