Ring contraction of 1,3-bis(5-bromopentyl)alloxazine |
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| Authors: | Semenov V E Giniyatullin R Kh Sharafutdinova D R Reznik V S |
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| Institution: | (1) Daiichi Sankyo Research Institute, 4250 Executive Square, La Jolla, California 92037, USA |
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| Abstract: | The reaction of 1,3-bis(5-bromopentyl)alloxazine with ethylamine in propan-2-ol resulted in replacement of the terminal bromine
atoms by ethylamino groups and was accompanied by contraction of the pyrimidine ring so that the products were 1,3-bis5-(ethylamino)pentyl]alloxazine
and 1,3-bis5-(ethylamino)-pentyl]imidazo4,5-b]quinoxalin-2-one. |
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