-
公开(公告)号:AU2562695A
公开(公告)日:1995-12-18
申请号:AU2562695
申请日:1995-05-09
Applicant: BASF AG
Inventor: KARL ULRICH , MULLER STEFAN , POTZOLLI BERND DE
IPC: C07B61/00 , C07C227/18 , C07C229/12 , C07C269/06 , C07C271/22 , C07C323/59
Abstract: A process for preparing N-protected N-alkylated amino acids of the formula I:in which the substituents have the meanings stated in the description, comprises mixing a compound of the formula IIwith a solution of potassium tert-butanolate in a non-protic organic solvent, and subsequently adding a C1-2-alkyl halide.
-
公开(公告)号:AU2408295A
公开(公告)日:1995-11-29
申请号:AU2408295
申请日:1995-04-26
Applicant: BASF AG
Inventor: AMBERG WILHELM , BERNARD HARALD , BUSCHMANN ERNST , HAUPT ANDREAS , JANITSCHKE LOTHAR , JANSSEN BERND , KARL ULRICH , KLING ANDREAS , MULLER STEFAN , POTZOLLI BERND DE , RITTER KURT , THYES MARCO , ZIERKE THOMAS
Abstract: Compounds of the formulawhere R1, R2, R3 and R4 have the meaning stated in the description, and a process for preparing them are described. The compounds are suitable as starting material for synthesizing substances which are active against tumors.
-