作者:Yuzo Fujimoto、Tatsuzo Ukita、Hisashi Miyagawa、Tetsu Tsurushima、Hiroshi Irie、Keiichiro Nishimura、Tamio Ueno
DOI:10.1271/bbb.58.1627
日期:1994.1
To clarify the absolute configurations of antafumicins A and B, which are antifungal substances from Aspergillus niger NH-401, the total synthesis of (2S)-antafumicins was accomplished by starting from (S)-malic acid in 12 steps. Based upon the physicochemical data of the synthetic samples, the absolute configurations of naturally occurring antafumicins A and B were determined as (2R,4S)- and (2R,4R)-4-(3-acetyl-2,6-dihydroxyphenyl)-2-methoxy-4-butanolide, respectively.
为了阐明来自黑曲霉NH-401的抗真菌物质安Fumicins A和B的绝对构型,以(S)-苹果酸为原料,分12步完成了(2S)-antafumicins的全合成。根据合成样品的理化数据,天然存在的安Fumicins A和B的绝对构型被确定为(2R,4S)-和(2R,4R)-4-(3-乙酰基-2,6-二羟基苯基)-分别为2-甲氧基-4-丁内酯。