The cyclocondensation reaction of 1-benzoyloxy-2-tert-butyl-dimethylsilyloxy-4-methoxy-1,3-butadiene with N,O-protected D-threoninals and D-allo-threoninals
作者:A. Golebiowski、J. Jurczak
DOI:10.1016/s0040-4020(01)80942-x
日期:1991.1
The zinc bromide-catalyzed reaction of 1-benzoyloxy-2-tert-butyldimethylsilyloxy-4-methoxy-1,3-butadiene (3) with N-carbobenzoxy-O-protected-D-allo- (4) and -D-threoninal (9) was studied. Pyrones 7a and 12a were transformed into diastereoisomers of lincosamine (16 and 19).