Es wird die Synthese von 1,2,3,4‐Tetrahydrophthalazin und einigen 2,3‐Diacyl‐Derivaten beschrieben.
Es wird die Synthese von 1,2,3,4-Tetrahydrophthalazin 和 einigen 2,3-Diacyl-Derivaten beschrieben。
Quinaldoyl-amine derivatives of oxo-and hydroxy-substituted hydrocarbons
申请人:Narhex Limited
公开号:US05679688A1
公开(公告)日:1997-10-21
The present invention discloses the compounds of general formula (1) ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 are optionally substituted carbonyl and amide derivatives which are useful as inhibitors of retroviral proteases, and are effective in treating conditions characterized by unwanted activity of these enzymes, such as acquired immune deficiency syndrome.
Peptide bond formation via an intramolecular rearrangement
作者:Jac C.H.M. Wijkmans、Jacques H. van Boom、Wim Bloemhoff
DOI:10.1016/s0040-4039(00)61615-5
日期:1993.10
Intramolecular peptide synthesis could be achieved using tetrahydrophthalazine (1) as template. Peptide bond formation proceeded via the N-acyl-N′α-aminoacylhydrazine-rearrangement. The feasibility of the approach is illustrated by the synthesis of the protected tripeptide Z-Val-Gly-Ala-OMe (8).
diazabicycloalkanes. We developed a direct methodology for the synthesis of the annulated product P1, involving the use of an organocatalytic aza-Michael/aldol reaction of enals (Scheme 1, bottom). In this strategy, a cascade reaction is employed, initiated by the aza-Michael addition, followed by an intramolecular cyclization.23 This methodology provides a viable and simple approach to access various nitrogen-containing