A practical synthesis of enantiopure N-carbobenzyloxy-N′-phthaloyl-cis-1,2-cyclohexanediamine by asymmetric reductive amination and the Curtius rearrangement
摘要:
Enantionterically pure N-carbobenzyloxy-N'-phthaloyl-cis-1,2-cyclohexanediamine was synthesized by the asymmetric reduction of a beta-enamino ester formed from benzyl 2-oxocycloliexanecarboxylate and (R)-phenylethylamine, followed by hydrogenolysis, phthaloylation, and the Curtius rearrangement. (c) 2007 Elsevier Ltd. All rights reserved.
The present invention encompasses compounds of general formula (1)
wherein
R
1
to R
3
are defined as in claim 1, which are suitable for the treatment of diseases characterised by excessive or abnormal cell proliferation, and the use thereof for preparing a pharmaceutical composition having the above-mentioned properties.
本发明涵盖了一般式(1)的化合物
其中
R
1
至 R
3
如权利要求书中所定义,适用于治疗以细胞过度或异常增殖为特征的疾病,并用于制备具有上述特性的药物组合物。
[EN] REGIOSELECTIVE PREPARATION OF 2 -AMINO-5-TRIFLUOROMETHYLPYRIMIDINE DERIVATIVES<br/>[FR] PRÉPARATION RÉGIOSÉLECTIVE DE DÉRIVÉS DE 2-AMINO-5TRIFLUOROMÉTHYLPYRIMIDINE
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2011018518A1
公开(公告)日:2011-02-17
The present invention relates to a method of making pyrimidines of formula (III) wherein X2 is a leaving group selected from the group consisting of: phenyloxy optionally substituted by 1-5 suitable substituents, heterocyclyl N-oxy optionally substituted by 1-5 suitable substituents, and heteroaryl N-oxy optionally substituted by 1-5 suitable substituents; R1 and R2 are substituents independently selected from the group consisting of hydrogen, an aromatic group and an aliphatic group, or taken together -N(R1)R2 can form a 4-11 membered aromatic or aliphatic ring; said method comprising reacting a compound of formula (I) with an amine of formula (Il) [HN(R1)R2] to form a compound of formula (III), wherein X1 is a leaving group.
The present invention relates to a process for making 2,4-differentiated 5-trifluoromethyl pyrimidines and 2-amino-5-trifluoromethyl-pyrimidine derivatives, which compounds are useful in the preparation of pharmacologically active compounds.
[EN] REGIOSELECTIVE PREPARATION OF 2-AMINO-5-TRIFLUOROMETHYLPYRIMIDINE DERIVATIVES<br/>[FR] PRÉPARATION RÉGIOSÉLECTIVE DE DÉRIVÉS DE 2-AMINO-5-TRIFLUOROMÉTHYLPYRIMIDINE
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2011018517A1
公开(公告)日:2011-02-17
The present invention relates to a method of making pyrimidines of formula (III) said method comprising reacting a compound of formula (I) with an oxygen, sulfur or nitrogen nucleophile of formula T-H; and reacting the compound obtained with an amine of formula (Il) [HN(R1 )R2] to form a compound of formula (III) wherein X1, X2, T, R1 and R2 have the meanings as defined herein.