Cyclic hydroxamic acids derived from α-amino acids 1. Regioselective synthesis, structure, NO-donor and antimetastatic activities of spirobicyclic hydroxamic acids derived from glycine and DL-alanine
作者:I. V. Vystorop、N. P. Konovalova、Yu. V. Nelyubina、V. N. Varfolomeev、B. S. Fedorov、T. E. Sashenkova、E. N. Berseneva、K. A. Lyssenko、R. G. Kostyanovsky
DOI:10.1007/s11172-010-0055-x
日期:2010.1
The reactions of glycine hydroxamic and DL-alanine hydroxamic acids with triacetonamine are chemoselective and afford 1-hydroxy-7,7,9,9-tetramethyl-1,4,8-triazaspiro[4.5]decan-2-one (3) and (±)-1-hydroxy-3,7,7,9,9-pentamethyl-1,4,8-triazaspiro[4.5]decan-2-one (4), respectively. The X-ray diffraction study showed that compound 3 crystallizes as a solvate with MeCN (1: 1). As shown by ESR measurements
甘氨酸异羟肟酸和 DL-丙氨酸异羟肟酸与三丙酮胺的反应具有化学选择性,可得到 1-羟基-7,7,9,9-四甲基-1,4,8-三氮杂螺[4.5]癸烷-2-one (3) 和(±)-1-羟基-3,7,7,9,9-pentamethyl-1,4,8-triazaspiro[4.5]decan-2-one (4) 分别。X 射线衍射研究表明,化合物 3 作为与 MeCN (1:1) 的溶剂化物结晶。ESR 测量表明,螺异羟肟酸 3 和 4 是体外生物系统中的 NO 供体。发现化合物 3 和 4 的 NO 供体活性在 DMSO 存在下显着更高。同源物 4 是比 3 更强的 NO 供体。化合物 4 在 B16-黑色素瘤模型上也表现出高抗转移活性 (81%)。