A key step in the first total synthesis of the potent pancreatic lipase inhibitor (-)-lipstatin (1) is a diastereoselective Lewis acid-promoted [2 + 2] cycloaddition reaction between n-hexyl(trimethylsilyl)ketene (4) and (R)-(-)-(Z,Z)-3-[(tert-butyldimethylsilyl)oxy]5,8-tetradecadienal (3), which is prepared from dimethyl (S)-(-)-malate.
A key step in the first total synthesis of the potent pancreatic lipase inhibitor (-)-lipstatin (1) is a diastereoselective Lewis acid-promoted [2 + 2] cycloaddition reaction between n-hexyl(trimethylsilyl)ketene (4) and (R)-(-)-(Z,Z)-3-[(tert-butyldimethylsilyl)oxy]5,8-tetradecadienal (3), which is prepared from dimethyl (S)-(-)-malate.
作者:Agnes Pommier、Jean-Marc Pons、Philip J. Kocienski
DOI:10.1021/jo00127a045
日期:1995.11
A key step in the first total synthesis of the potent pancreatic lipase inhibitor (-)-lipstatin (1) is a diastereoselective Lewis acid-promoted [2 + 2] cycloaddition reaction between n-hexyl(trimethylsilyl)ketene (4) and (R)-(-)-(Z,Z)-3-[(tert-butyldimethylsilyl)oxy]5,8-tetradecadienal (3), which is prepared from dimethyl (S)-(-)-malate.