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Quinindines |
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| Authors: | L E Kholodov G P Syrova V G Yashunskii Yu N Sheinker |
| Institution: | (1) Ordzhonikidze All-Union Scientific-Research Institute of Pharmaceutical Chemistry, Moscow |
| Abstract: | It is shown that, together with  -quinindane-9-carboxylic acid, the condensation of isatin with cyclopentanone in alkaline medium (Pfitzinger reaction) also affords  ,  -dicyclopentylidenecyclopentanone and 3-cyclopentylidene--quinindane-9-carboxylic acid, the structure of which was confirmed by its NMR, IR, and UV spectra. |
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