Toward the Combinatorial Synthesis of Polyketide Libraries: Asymmetric Aldol Reactions with α-Chiral Aldehydes on Solid Support
摘要:
[GRAPHIC]The viability of performing stereocontrolled aldol additions with a-chiral aldehydes attached by a silyl linker to a hydroxymethyl polystyrene resin is demonstrated for boron and titanium enolates. Subsequent ketone reduction and manipulation on the solid support leads to elaborate stereopentad sequences, as occur in 6-deoxyerythronolide B and discodermolide.
Toward the Combinatorial Synthesis of Polyketide Libraries: Asymmetric Aldol Reactions with α-Chiral Aldehydes on Solid Support
摘要:
[GRAPHIC]The viability of performing stereocontrolled aldol additions with a-chiral aldehydes attached by a silyl linker to a hydroxymethyl polystyrene resin is demonstrated for boron and titanium enolates. Subsequent ketone reduction and manipulation on the solid support leads to elaborate stereopentad sequences, as occur in 6-deoxyerythronolide B and discodermolide.