CHIRAL BUILDING BLOCKS FROM METHYL α-D-MANNOPYRANOSIDE AND METHYL α-D-GLUCOPYRANOSIDE FOR ANTHRACYCLINONE SYNTHESIS

Article abstract of DOI:10.1016/0008-6215(87)80119-2

The reaction of methyl 4,6-O-benzylidene-2-deoxy-α-D-erythro-hexopyranoside-3-ulose with methyllithium and ethyl- and ethynylmagnesium bromide yielded predominantly the adducts methyl 4,6-O-benzylidene-2-deoxy-3-C-methyl-α-D-ribo-hexopyranoside, methyl 4,