METHOD FOR SYNTHESIS OF CIGUATOXIN CTX1B AND COMPOUND USEFUL FOR THE SYNTHESIS OF CIGUATOXIN CTX1B
申请人:Japan Science and Technology Agency
公开号:EP1982988A1
公开(公告)日:2008-10-22
Disclosed is a method for total synthesis of CTX1B, which is developed for the synthesis of a ciguatoxin analogue such as CTX3C and enables the more efficient application of an established reaction to the total synthesis of CTC1B. More specifically, disclosed is a method for total synthesis of CTX1B comprising; an O.S-acetal formation for synthesizing a novel compound (3); a radical cyclization reaction for constructing a 9-membered ring formation reaction including a novel compound (6) through a novel compound (8) and yielding a compound (D); and a deprotection for yielding CTX1B. Also disclosed are novel compounds (1) to (8) which are particularly useful for synthesis of CTX1B and can be used for the synthesis of a ciguatoxin analogue.
本发明公开了一种 CTX1B 的全合成方法,该方法是为合成雪卡毒素类似物(如 CTX3C)而开发的,能够更有效地将已有反应应用于 CTC1B 的全合成。更具体地说,本发明公开了一种用于全合成 CTX1B 的方法,该方法包括:用于合成新型化合物 (3) 的 O.S-缩醛形成反应;用于构建包括新型化合物 (6) 通过新型化合物 (8) 的 9 元环形成反应并生成化合物 (D) 的自由基环化反应;以及用于生成 CTX1B 的脱保护反应。还公开了新型化合物(1)至(8),它们特别适用于合成 CTX1B,并可用于合成雪卡毒素类似物。