D-Ins(1,3,4,5)P4 and unnatural L-Ins(1,3,4,5)P4 were prepared in gram-quantities from D- and L-2,6-di-O-benzyl-myo-inositol by a chemical phosphorylation and deprotection step in high yield and purity without extensive purification. The optically pure benzyl derivatives were obtained by enzyme-catalyzed resolution of racemic 2,6-di-O-benzyl-myo-inositol under acyl-transfer conditions in vinyl acetate
D-Ins(1,3,4,5)P4和非天然L-Ins(1,3,4,5)P4是从D-和
L-2,6-di-O-苄基-通过
化学磷酸化和脱保护步骤获得的肌醇,无需大量纯化即可获得高收率和纯度。在酰基转移条件下,在
乙酸乙烯酯作为酰基供体的条件下,通过酶催化拆分外消旋的2,6-二-O-苄基-肌醇,得到光学纯的苄基衍
生物。南极假丝酵母的
脂肪酶仅将对映体和对映体选择性地乙酰化L-对映体,仅提供L-5-乙酰基-2,6-二-O-苄基-肌醇,而D-对映体保持不变。