Synthesis of novel tricyclic 4-chloro-7,
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Jinbao Xiang; Lianyou Zheng; Tong Zhu; Qun Dang; Xu Bai
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Article
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2010
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Journal of Heterocyclic Chemistry
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English
⚖ 126 KB
## Abstract magnified image A series of tricyclic 7,8,10,11‐tetrahydro‐5__H__‐benzo[__e__]pyrimido[4,5‐__b__][1,4]diazepin‐9(6__H__)‐ones were prepared in moderate to high yields using TFA‐promoted iminium‐cyclization reactions of 3‐(6‐(butylamino)‐4‐chloropyrimidin‐5‐ylamino)cyclohex‐2‐enones and