YAKHAK HOEJI (약학회지)
- Volume 18 Issue 2
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- Pages.125-132
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- 1974
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- 0377-9556(pISSN)
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- 2383-9457(eISSN)
Studies on the Condensation with Malonates and Urea
Malon 산 Ester 유도체와 요소와의 축합에 관한 연구
Abstract
The by-products which were occured in the synthesis of 5-ethyl-5-phenyl barbituric acid were isolated by column chromatography combined with gas-liquid chromatography and were identified by elemental analysis, ir, nmr and mass spectroscopy ; major by-products were ethyl
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