Synthesis of Enantiomerically and Diastereomerically Pure 2(<i>S</i>)-Amino-6(<i>R</i>)-hydroxy-1,7-heptanedioic Acid Dimethyl Ester Hydrochloride from Cycloheptadiene
作者:Brock T. Shireman、Marvin J. Miller
DOI:10.1021/jo015544d
日期:2001.7.1
The complete carbon framework of enantiomerically and diastereomerically pure 2(S)-amino-6(R)-hydroxy-1,7-heptanedioic acid dimethyl ester hydrochloride was derived from cycloheptadiene in six steps utilizing an amino acid-derived acylnitroso Diels-Alder reaction as the key step. This versatile amino diester has been previously used to synthesize amino-differentiated diaminopimelic acid (DAP) and biologically
对映体和非对映体纯的2(S)-氨基-6(R)-羟基-1,7-庚二酸二甲酯盐酸盐的完整碳骨架是利用氨基酸衍生的酰基亚硝基Diels-Alder反应分六步从环庚二烯衍生而来的作为关键步骤。这种多功能的氨基二酯先前已用于合成氨基分化的二氨基庚二酸(DAP)和生物活性类似物。另外,在形成新的氨氧基二酮哌嗪之后,通过指导初始环加成的立体化学的氨基酸的新的转肽作用,将新形成的羧基区分开。