反应详情

Proceeding in a like manner but substituting the appropriate aldehyde of formula (6) as prepared in Preparation 4, or the appropriate ketone of formula (8) as prepared in either Preparation 6 or 9, and either L-serine methyl ester or a racemic mixture of D,L-serine methyl ester or similar ester, there are prepared the following exemplary compounds:

1. customas prepared in Preparation 4
2. customare prepared the following exemplary compounds