Online article for Non-subscribers

Pay per view

Heterocycles has a pay-per-view service for Non-subscribers.
You will be able to directly purchase the full text article through PayPal.
Your purchased Paper can be downloaded after the payment is completed.
An e-mail will be sent the URL to download the paper.
If you have any questions, please contact:

Price: ¥ 4,320 (Yen only)
Period: This Article can be accessed for 7 days.

Communication | Special issue | Vol 33, No. 1, 1992, pp.121-125
Published online, 1st January, 1970
DOI: 10.3987/COM-91-S41
Synthesis of Na-Methoxyindole and Na-Methoxyoxindole Alkaloids Having Yohimbine Skeleton

Hiromitsu Takayama, Norio Seki, Mariko Kitajima, Norio Aimi, Hiroko Seki, and Shin-ichiro Sakai*

*Faculty of Pharmaceutical Sciences, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan


Indoloquinolizidine (1) and yohimbine (7) were converted to the corresponding Na-methoxyindoles and Na-methoxyoxindoles by the oxidation of the dihydroindole derivatives with H2O2 and sodium tungstate.