Investigations on Pantothenic Acid and Its Related Compounds. XIX. Chemical Studies. (9). Syntheses of 2'-Ketopantothenic Acid and 2', 2''-Diketopantethine
作者:OSAMU NAGASE、YASUHIRO HOSOKAWA、MASAO SHIMIZU
DOI:10.1248/cpb.17.398
日期:——
Wieland synthesized 2'-ketopantothenic acid [N-(4-hydroxy-3, 3-dimethyl-2-oxobutyryl)-β-alanine] (Keto-PaA) (V) and reported its uneffectiveness as the growth factor for Streptobacterium plantarum 10 S (=Lactobacillus arabinosus). The keto compound (VI) corresponding to pantethine, 2', 2''-diketopantethine (Keto-PTSS), has not yet been known. It seems very interesting to examine the possibility of enzymatic conversion of these compounds to the corresponding active vitamins in mammalian body. This paper describes the synthesis of these keto compounds.
维兰德合成了2'-酮泛酸[N-(4-羟基-3,3-二甲基-2-氧丁酰基)-β-氨基丙酸](酮泛氨酸)(V),并报道其对链状杆菌植物乳杆菌10S(=乳酸杆菌阿拉伯糖乳杆菌)的生长因子无效。与泛硫乙胺相对应的酮类化合物,2',2''-二酮泛硫乙胺(酮泛硫乙胺)(VI)至今尚未被发现。探讨这些化合物在哺乳动物体内通过酶促反应转化为相应活性维生素的可能性似乎很有趣。本文描述了这些酮类化合物的合成。