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: purchase@heterocycles.com

Price: ¥ 4,400 (Yen only)
Period: This Article can be accessed for 7 days.

Paper | Regular issue | Vol 60, No. 10, 2003, pp.2241-2249
Published online, 18th August, 2003
DOI: 10.3987/COM-03-9839
■ Synthesis of 10-Hydroxy-3-methyl-1H-pyrano[4,3-b]quinoline Derivatives

Mieko Morone, Atsuko Sato, and Yutaka Azuma*

*Tohoku Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Japan

Abstract

Heating of 4-arylamino-3-ethoxycarbonyl-6-methyl-2H-pyran-2-one derivatives (3), which were obtained from the reaction between 4-chloro-3- ethoxycarbonyl-6-methyl-2H-pyran-2-one (2) and anilines, in PPA gave corresponding 10-hydroxy-3-methylpyrano[4,3-b]quinoline derivatives (4) and 1-(4-hydroxyquinolin-2-yl)propan-2-one (5).