Stereocontrolled syntheses of C-linked deoxyribosides of 2-hydroxypyridine and 2-hydroxyquinoline
摘要:
2'-Deoxy-C-ribosides 4 and 5 were prepared in optically active form by a route expected to be generally useful for the synthesis of the alpha- or beta-anomers of 2'-deoxy-C-ribosides. Key steps are the addition of an organometallic reagent to aldehyde 7, mesylation of the resulting alcohol, and stereospecific deprotection/cyclization to yield the 2'-deoxy-C-riboside (7 + 8 --> 9/10; 9 --> 11).
Stereocontrolled syntheses of C-linked deoxyribosides of 2-hydroxypyridine and 2-hydroxyquinoline
摘要:
2'-Deoxy-C-ribosides 4 and 5 were prepared in optically active form by a route expected to be generally useful for the synthesis of the alpha- or beta-anomers of 2'-deoxy-C-ribosides. Key steps are the addition of an organometallic reagent to aldehyde 7, mesylation of the resulting alcohol, and stereospecific deprotection/cyclization to yield the 2'-deoxy-C-riboside (7 + 8 --> 9/10; 9 --> 11).