1465769-17-8Relevant articles and documents
Stereochemical course of acylation and aldol condensation in (4S)-4-methyl-2-benzyl-2,4-dihydro-1H-pyrazino[2,1-b]quinazoline-3,6-diones
Bartolome, M. Teresa,Buenadicha, Felix L.,Avendano, Carmen,Soellhuber, Monica
, p. 249 - 258 (1998)
Acylation of 1 leads to the syn derivatives 2. Traces of the anti isomers equilibrate to the syn isomers when stored in CHCl3. Aldol condensation showed great diastereoselectivity, but racemization could not be avoided. The configuration of the