An Enantiocontrolled Route to Protomycinolide IV and Its Presumed Biogenetic Precursors Using (S)-O-Benzylglycidol
摘要:
Starting with (S)-O-benzylglycidol (9) as only chiral building block, a formal synthesis of protomycinolide IV (1) and the first syntheses of its presumed biogenetic precursors methyl epimycinonate I (2), methyl mycinonate I (3), methyl mycinonate II (4), and decarboxymycinonic acid III (5), have been achieved via the eight-carbon unit (8) as a common intermediate.
A conciseenantioselectivesynthesis of C27−34 fragment of mycoticin B and C31−37 fragment of amphotericin B is described using a common building block prepared from (S)-O-benzylglycidol.
使用由 (S)-O-苄基缩水甘油制备的通用构件描述了霉菌素 B 的 C27-34 片段和两性霉素 B 的 C31-37 片段的简明对映选择性合成。
TAKANO, SEIICHI;SHIMAZAKI, YOUICHI;SEKIGUCHI, YOSHINORI;OGASAWARA, KUNIO, CHEM. LETT.,(1988) N 12, C. 2041-2044