326855-11-2Relevant articles and documents
Novel procedure for selective C-nitrosation of aminopyrimidine derivatives under neutral conditions. Scope and synthetic applications
Marchal, Antonio,Melguizo, Manuel,Nogueras, Manuel,Sánchez, Adolfo,Low, John N.
, p. 255 - 258 (2002)
A novel simple method, based on treatment with isoamyl nitrite (IAN) in DMSO without any added acid, to produce selective C(5)-nitrosation of aminopyrimidine derivatives is described. It proved to be suitable for a multigram scale and applicable to a larger range of pyrimidine derivatives, including amino-dialkoxypyrimidines, than the procedures previously known. Its scope is analyzed and some example on the usefulness of the newly prepared substances as intermediates in the synthesis of fused heterobicyclic derivatives of potential biological interest is presented.
HAIR COLOURANTS COMPRISING TETRAAMINOPYRIMIDINE DERIVATES
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Paragraph 0217; 0218; 0219; 0220, (2017/11/29)
The present disclosure relates to compositions for colouring keratin fibres, in particular human hair, where the composition comprises, in a cosmetic carrier, at least one neutral tetraaminopyrimidine derivate of the general formula (I), (I) in which R1, R2 independently of one another are a group of the formulae (II), (III) or (IV) —(CH2)n— (II) —(CH2)m—O—(CH2)p— (III) —(CH2)m—N(R3)-(CH2)p— (IV) n is 2, 3, 4, 5 or 6, m, p in each case independently of one another are 1, 2 or 3, Y is —OH, —NH2 or —NH-alkyl, R3 is a hydrogen atom, a C1-C6-alkyl group or is a C2-C6-alkenyl group.
Alkoxy-5-nitrosopyrimidines: Useful building block for the generation of biologically active compounds
Marchal, Antonio,Nogueras, Manuel,Sanchez, Adolfo,Low, John N.,Naesens, Lieve,De Clercq, Erik,Melguizo, Manuel
experimental part, p. 3823 - 3830 (2010/10/04)
Several alkoxy-5-nitrosopyrimidines were synthesised and high regioselective and sequential nucleophilic aromatic substitution of methoxy groups in 2-am:ino-4,6-d.imetho;xy-5nitrosopyrimidine was observed. The approach was applied to the synthesis of valu