Stereoselective Chirality Extension of <i>syn</i>,<i>anti</i>- and <i>syn</i>,<i>syn</i>-Oxazine and Stereochemical Analysis of Chiral 1,3-Oxazines: Stereoselective Total Syntheses of (+)-1-Deoxygalactonojirimycin and (−)-1-Deoxygulonojirimycin
作者:Jin-Seok Kim、Yong-Taek Lee、Kun-Hee Lee、In-Soo Myeong、Jong-Cheol Kang、Changyoung Jung、Seok-Hwi Park、Won-Hun Ham
DOI:10.1021/acs.joc.6b01079
日期:2016.9.2
This paper describes the stereoselective total syntheses of (+)-1-deoxygalactonojirimycin and (−)-1-deoxygulonojirimycin via new chiral building blocks syn,anti,syn-oxazine 11a and syn,syn,anti-oxazine 13a. These were accomplished in four steps in 44.1 and 33.7% overall yields, respectively. These chirons were derived from the stereoselective addition of a nucleophile to the corresponding aldehydes
通过新的手性结构单元1-deoxygulonojirimycin -本文描述的(+)立体选择性全合成- 1-脱氧半和( - )顺式,反,顺-恶嗪11A和SYN,SYN,抗恶嗪13a中。这些分四个步骤完成,分别达到44.1%和33.7%的总产量。这些Chirons是通过将亲核试剂立体选择性加成到相应的syn,抗恶嗪10和syn,顺恶嗪12醛上而得到的。此外,本文描述了三种类型的手性1,3-恶嗪的立体化学分析。反,顺- ,顺式,反-和SYN,SYN -oxazines使用NOESY技术。