Synthesis of the indole alkaloids meridianins from the tunicate Aplidium meridianum
摘要:
The marine natural products meridianins A and C-E have been synthesized for the first time starting from the appropriate N-tosyl-3-acetylindole. A facile two-step conversion of N-tosyl-3-acetylindoles to the corresponding meridianins by treatment with dimethylformamide dimethylacetal and further cyclization of the resulting enaminone with aminoguanidine is described. This method has also been applied for the preparation of the 3-[(2-amino)pyrimidin-4-yl]-7-azaindole. (C) 2001 Elsevier Science Ltd. All rights reserved.
Synthesis of the indole alkaloids meridianins from the tunicate Aplidium meridianum
摘要:
The marine natural products meridianins A and C-E have been synthesized for the first time starting from the appropriate N-tosyl-3-acetylindole. A facile two-step conversion of N-tosyl-3-acetylindoles to the corresponding meridianins by treatment with dimethylformamide dimethylacetal and further cyclization of the resulting enaminone with aminoguanidine is described. This method has also been applied for the preparation of the 3-[(2-amino)pyrimidin-4-yl]-7-azaindole. (C) 2001 Elsevier Science Ltd. All rights reserved.
Compounds of the formula I in which R
1
, R
2
, R
3
, R
4
and R
5
are each as defined in claim
1
are inhibitors of cell proliferation/cell vitality and can be used to treat tumors.
[DE] 4-(PYRROLOPYRIDINYL)-PYRIMIDINYL-2-AMIN-DERIVATE<br/>[EN] 4-(PYRROLOPYRIDINYL)PYRIMIDINYL-2-AMINE DERIVATIVES<br/>[FR] DERIVE DE 4-(PYRROLOPYRIDINYL)-PYRIMIDINYL-2-AMINE
申请人:MERCK PATENT GMBH
公开号:WO2007107221A1
公开(公告)日:2007-09-27
[EN] Compounds of the formula I in which R1 , R2, R3, R4 and R5 are each as defined in claim 1 are inhibitors of cell proliferation/cell vitality and can be used to treat tumors. [FR] L'invention concerne des composés de formule I, dans laquelle R1, R2, R3, R4 et R5 ont les significations données dans la revendication 1, lesdits composés étant des inhibiteurs de la prolifération cellulaire et de la vitalité cellulaire et pouvant être utilisés pour le traitement de tumeurs. [DE] Verbindungen der Formel I, worin R1 , R2, R3, R4 und R5 die in Anspruch 1 angegebenen Bedeutungen haben, sind Inhibitoren der Zeilproliferation/ Zellvitalität und können zur Behandlung von Tumoren eingesetzt werden.