Nonsteroidal Benzophenone-Containing Analogues of Cholesterol
作者:Yonghong Gan、David H. Blank、Joshua E. Ney、Thomas A. Spencer
DOI:10.1021/jo060481q
日期:2006.8.1
The four benzophenones, 10-13, containing the natural side chain of cholesterol (1) have been synthesized to explore whether the tetracyclic nucleus of 1 is essential for its biochemical properties. The syntheses of analogues 10, 11, and 13 feature efficient introduction of the alkyl side chain by Suzuki coupling. Preliminary biochemical evaluation of 10 and 12 suggests that the sterol tetracyclic nucleus is not required for biological compatibility with 1.
Terpenes in organic synthesis
作者:G. D. Gamalevich、E. P. Serebryakov
DOI:10.1007/bf00697081
日期:1993.2
A seven-step synthesis of S-(+)-hydroprene (S-1) in similar to 20% overall yield starting from S-(+)-3,7-dimethyl-1,6-octadiene (2) of 55+/-10% optical purity is described. The introduction of an optical enhancement step in the synthetic sequence at the stage of S-(-)-3,7-dimethyl-1-octanol (9) raises the optical purity of S-1 from similar to 50% to similar to 80%.