Convenient synthesis of novel pyrimido[4,5‐
<i>b</i>
][1,5]benzothiazepines
作者:Mohsen Nikpour、Neda Hasanzadeh
DOI:10.1002/jhet.4141
日期:2020.12
oro‐pyrimidine‐5‐carbaldehydes derivatives at low temperature. Treatment of the latter products with 2‐aminobenzenethiol in alkaline benzene and then in boiling acetonitrile gave a novel group of 11H‐pyrimido[4,5‐b][1,5]benzodiazepine derivatives. Structures of the products confirmed by 1HNMR, IR, and mass spectra.
4,6-二氯嘧啶-5-甲醛与胺在氯仿中的反应在低温下生成4-(取代氨基)-6-氯嘧啶-5-甲醛的衍生物。使用2-氨基苯硫酚在碱性苯中,然后在沸腾的乙腈中处理后一产物,得到了一组新的11H-嘧啶基[4,5- b ] [1,5]苯并二氮杂衍生物。产品的结构通过1 HNMR,IR和质谱证实。
Synthesis of 7-alkyl-4-amino-7H-pyrrolo-[2,3-d]pyrimidine-6-carboxylic acids
作者:E. V. Verves、A. V. Kucher、L. V. Muzychka、O. B. Smolii
DOI:10.1007/s10593-013-1218-0
日期:2013.3
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.
CLARK J.; PARVIZI B.; COLMAN R., J. CHEM. SOC. PERKIN TRANS., PART 1 <JCPK-BH>, 1976, NO 9, 1004-1007