Stereoselective Synthesis of all Stereoisomeric 2-Amino-3-Hydroxy-4-Phenylbutanolides
摘要:
Diastereoselective methylation of the ketone 5a leads to the anti-derivative 4a; the other diastereoisomer 4b may be obtained by a deprotonation/reprotonation sequence. Each of the methylated products may be reduced stereoselectively in either sense by appropriate choice of reagent, providing a route to all stereoisomers of the title 2-amino-3-hydroxy-4-phenylbutanolides 10a-d. (C) 1997 Elsevier Science Ltd.
Stereoselective Synthesis of all Stereoisomeric 2-Amino-3-Hydroxy-4-Phenylbutanolides
摘要:
Diastereoselective methylation of the ketone 5a leads to the anti-derivative 4a; the other diastereoisomer 4b may be obtained by a deprotonation/reprotonation sequence. Each of the methylated products may be reduced stereoselectively in either sense by appropriate choice of reagent, providing a route to all stereoisomers of the title 2-amino-3-hydroxy-4-phenylbutanolides 10a-d. (C) 1997 Elsevier Science Ltd.
Stereoselective Synthesis of all Stereoisomeric 2-Amino-3-Hydroxy-4-Phenylbutanolides
作者:Susan Gair、Richard F.W Jackson*、Paul A Brown
DOI:10.1016/s0040-4039(97)00544-3
日期:1997.4
Diastereoselective methylation of the ketone 5a leads to the anti-derivative 4a; the other diastereoisomer 4b may be obtained by a deprotonation/reprotonation sequence. Each of the methylated products may be reduced stereoselectively in either sense by appropriate choice of reagent, providing a route to all stereoisomers of the title 2-amino-3-hydroxy-4-phenylbutanolides 10a-d. (C) 1997 Elsevier Science Ltd.