共 24 条
Stereoselective Synthesis of the C25-C36 Segment of Arenicolides A and B: Determination of the Configuration of the Trisubstituted Epoxide
被引:5
作者:
Nagumo, Shinji
[1
]
Nakano, Taeko
[1
]
Hata, Kyomi
[1
]
Mizukami, Megumi
[2
]
Miyashita, Masaaki
[1
]
机构:
[1] Kogakuin Univ, Dept Appl Chem, Tokyo 1920015, Japan
[2] Hokkaido Pharmaceut Univ, Sch Pharm, Otaru, Hokkaido 0470264, Japan
关键词:
1,3-DIOL ACETONIDES;
STEREOCHEMISTRY;
CATALYST;
ALCOHOLS;
ACID;
D O I:
10.1021/ol902750e
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
Two diastereomeric epoxides 4a and 4b corresponding to the C-25-C-36 fragment of arenicolides A and B were synthesized in a stereoselective manner involving the Pd(0)-catalyzed stereospecific methoxy substitution reaction of epoxy unsaturated ester 6 with B(OMe)(3) as the key step. Comparison of the H-1 NMR spectra of the synthetic compounds with that of arenicolide A revealed that the configuration of the epoxide in arenicolides A and B is 30R and 31R.
引用
收藏
页码:908 / 911
页数:4
相关论文