1-Acyldeoxyvasicinone salts as effective intermediate C-and N-acylating agents for alkaloids and amino acids
作者:Kh. M. Shakhidoyatov、G. P. Genjemuratova、E. Oripov
DOI:10.1007/s10600-006-0261-9
日期:2006.11
The reaction of deoxyvasicinone with acid chlorides of aliphatic (acetylbromide) and aromatic (benzoyl-, o-, p-methoxy-, p-nitrobenzoylchlorides) acids was studied. It was shown that 1-deoxyvasicinone salts were formed at room temperature; α-aroyloxymethylidenedeoxyvasicinones, in the presence of triethylamine at 80–85°C. It was found that acid chlorides cause 1-acyldeoxyvasicinone salts to transform into α-hydroxy-or α-aroyloxyarylidenedeoxyvasicinones, which indirectly confirmed their acylating properties. It was found that 1-acyldeoxyvasicinone salts were effective acylating agents for alkaloids (cytisine, 1,2-dihydrodeoxyvasicinone) and amino acids (glycine, β-alanine, α-aminobutyric acid) and can be used to acylate primary and secondary aliphatic and heterocyclic amines.
研究了脱氧紫堇酮与脂肪族(乙酰溴)和芳香族(苯甲酰、邻、对甲氧基、对硝基苯甲酰氯)羧酸酰氯的反应。结果表明,在室温下形成1-脱氧紫堇酮盐;在三乙胺存在下,80-85°C时形成α-芳酰氧甲叉脱氧紫堇酮。研究发现,酰氯引起1-酰基脱氧紫堇酮盐转化为α-羟基或α-芳酰氧芳叉脱氧紫堇酮,间接证实了它们的酰化性质。发现1-酰基脱氧紫堇酮盐对生物碱(金雀花碱、1,2-二氢脱氧紫堇酮)和氨基酸(甘氨酸、β-丙氨酸、α-氨基丁酸)是有效的酰化剂,并可用于酰化脂肪族和杂环的一级和二级胺。