The total synthesis of the marine alkaloid variolin B has been achieved in
eight steps, starting from commercially available 4-chloro-2-methylthiopyri
midine. The key reaction involves the tandem deoxygenation and cyclization
of a triarylmethanol using a combination of triethylsilane and trifluoroace
tic acid. (C) 2001 Elsevier Science Ltd. All rights reserved.