A new synthesis of chiral aminoalkyloxazolecarboxylate esters from isoxazol-5(2H)-ones: the synthesis of almazoles A and B
摘要:
2-(1-Aminoalkyl)oxazole-4 and 5-carboxylates are available, without detectable racemisation, by a sequence involving N-acylation of isoxazol-5(2H)one carboxylates with phthalimidoamino acids, photolysis of the acylated product, and hydrazinolysis. An application of the procedure to the synthesis of almazole A and B is described (C) 1998 Elsevier Science Ltd. All rights reserved.
A new synthesis of chiral aminoalkyloxazolecarboxylate esters from isoxazol-5(2H)-ones: the synthesis of almazoles A and B
作者:Jabbar Khalafy、Carina E. Svensson、Rolf H. Prager、Craig M. Williams
DOI:10.1016/s0040-4039(98)01014-4
日期:1998.7
2-(1-Aminoalkyl)oxazole-4 and 5-carboxylates are available, without detectable racemisation, by a sequence involving N-acylation of isoxazol-5(2H)one carboxylates with phthalimidoamino acids, photolysis of the acylated product, and hydrazinolysis. An application of the procedure to the synthesis of almazole A and B is described (C) 1998 Elsevier Science Ltd. All rights reserved.
The Synthesis of Some Chiral 2-Aminoalkyloxazole-5-carboxylates from Isoxazol-5(2H)-ones
作者:Matthew Cox、Rolf H. Prager、Carina E. Svensson、Max R. Taylor
DOI:10.1071/ch03053
日期:——
Ethyl 5-oxo-2,5-dihydroisoxazole-4-carboxylates have been N-acylated by a number of natural and synthetic phthalimidylamino acids in the presence of carbodiimides. The N-acylated products form the corresponding 2-aminoalkyloxazole-5-carboxylates smoothly when irradiated at 300 nm in acetone.