Synthesis of 7-alkyl-4-amino-7H-pyrrolo-[2,3-d]pyrimidine-6-carboxylic acids
摘要:
Two variants are discussed for the synthesis of ethyl N-alkyl-N-(6-amino-5-formylpyrimidin-4-yl)-glycinate derivatives, which are converted by intramolecular cyclization under the influence of sodium methoxide to give methyl 7H-pyrrolo[2,3-d]pyrimidine-6-carboxylates. New derivatives of pyrimido- [5',4':4,5]pyrrolo[2,1-c][1,4]oxazines containing 3-chloropropyl groups at position 8 have been prepared.
Study on the Reactions of Acetylenic Aldehydes with Dimethyl Phosphite in Basic Media: Phosphonate-Phosphate Rearrangement<i>versus</i>5-<i>exo</i>-dig Cyclization Reactions
作者:Inga Cikotiene、Rita Buksnaitiene
DOI:10.1002/adsc.201200276
日期:2012.10.8
Tandem reactions of various acetylenic aldehydes with dimethyl phosphite in basicmedia were investigated. It was shown that in the case of a non-activated triple bond of the starting materials, the well-known Pudovik reaction followed by a subsequent phosphonate-phosphate rearrangement took place. On the other hand when the triple bond of the starting materials is activated by electron-withdrawing
The First Tandem Acetalization/5-<i>exo</i>-<i>dig</i> Cyclization of 6-Phenylethynylpyrimidine-5-carbaldehydes: Efficient Synthesis of 5-Alkoxy-(7<i>Z</i>)-7-benzylidene-5<i>,</i>7<i>-</i>dihydrofuro[3,4-<i>d</i>]pyrimidines
The first example of catalyst-free tandem acetalization/5-exo-dig cyclization reactions of 6-phenylethynylpyrimidine-5-carbaldehydes is presented. Efficient novel synthesis of 5,7-dihydrofuro[3,4-d]pyrimidine core is described.
[EN] TRICYCLIC PYRIMIDINES AS CYCLIN-DEPENDENT KINASE 7 (CDK7) INHIBITORS<br/>[FR] PYRIMIDINES TRICYCLIQUES UTILISÉES EN TANT QU'INHIBITEURS DE LA KINASE 7 DÉPENDANTE DES CYCLINES (CDK7)
申请人:JANSSEN PHARMACEUTICA NV
公开号:WO2022136174A1
公开(公告)日:2022-06-30
The invention relates to pharmaceutical compounds of formula (I) and pharmaceutical compositions comprising said compounds, to processes for the preparation of said compounds and to the use of said compounds as inhibitors of cyclin-dependent kinase 7 (CDK7) and to their use in the treatment of diseases, e.g., cancer.
Study on the cyclization of 6-arylethynylpyrimidine-5-carbaldehydes with tert-butylamine: microwave versus thermal preparation of pyrido[4,3-d]pyrimidines
Thermal and microwave initiated cyclization of 2,4-disubstituted 6-arylethynylpyrimidine-5-carbaldehydes with tert-butylamine has been studied. A novel high-yielding preparation of 2,4-disubstituted 7-arylpyrido[4,3-d]pyrimidines has been developed. The intermediate compounds were isolated and possible mechanism of the reactions is discussed. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved.
Clark, J.; Shahhet, M. S.; Korakas, D., Journal of Heterocyclic Chemistry, 1993, vol. 30, # 4, p. 1065 - 1072
作者:Clark, J.、Shahhet, M. S.、Korakas, D.、Varvounis, G.