Enantiospecific synthesis of R-and S-5,6-dihydroxy-2- (N,N-DI-n-propylamino)tetralins from serine.
摘要:
The first enantiospecific synthesis of 5,6-dihydroxy-2-(NN-di-n-propylamino)tetralin [5,6-(HO)2DPAT] is reported. Starting from D- or L-serine either enantiomer is readily available in high optical purity.
Enantiospecific synthesis of R-and S-5,6-dihydroxy-2- (N,N-DI-n-propylamino)tetralins from serine.
摘要:
The first enantiospecific synthesis of 5,6-dihydroxy-2-(NN-di-n-propylamino)tetralin [5,6-(HO)2DPAT] is reported. Starting from D- or L-serine either enantiomer is readily available in high optical purity.
Formation of the oxathiazepine ring in eudistomins 1 was investigated. Thiazolidinyl-β-carboline 5 was successfully transformed into thiaindoloquinolizidine 7, but attempted oxidative transformation of 7 to 1 was not successful. The oxidative cyclization of 1-substituted-2 hydroxy-β-carboline 24 with NCS or the acid-catalyzed cyclization of the corresponding S-oxide 26 with TsOH gave oxathiazepine