@article{oai:tohoku-mpu.repo.nii.ac.jp:00000734,
 author = {中井, 啓陽 and Nakai, Keiyo and Sayar, Noel and 吉村, 祐一 and Yoshimura, Yuichi and 渡邉, 一弘 and Watanabe, Kazuhiro},
 issue = {64},
 journal = {東北医科薬科大学研究誌, Journal of Tohoku Medical and Pharmaceutical University},
 month = {Dec},
 note = {Cristaxenicin A（1）, isolated from the deep sea gorgonian Acanthoprimnoa cristata in 2012 by Nakao et al., is a new xenicane diterpenoid comprised of a 9-membered cyclononene ring and 2-acetoxy-3,4-dihydro-2H-pyran. Toward the total synthesis of 1, we have achieved the synthesis of the αβ, -unsaturated δ-lactone as a model compound bearing a bulky cyclopentanol substituent at α-position. The synthetic approach involves the following key steps: (i) Aldol coupling of cyclopentanone with α-p-methoxybenzyloxy ester, (ii) Swern oxidation of the α-hydroxy ester to afford the α-ketoester, (iii) Julia-Kocienski olefination of the α-ketoester followed by lactonization step.},
 pages = {57--63},
 title = {海洋由来ジテルペン系天然物cristaxenicin A の合成研究：α位に高立体障害の置換基を有するδ-不飽和ラクトン化合物の合成},
 year = {2017},
 yomi = {ナカイ, ケイヨウ and ヨシムラ, ユウイチ and ワタナベ, カズヒロ}
}