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Synthesis of Tricyclic 4-Chloro-pyrimido[4,5- b ][1,4]benzodiazepines

✍ Scribed by Yang, Jianxin; Che, Xin; Dang, Qun; Wei, Zhonglin; Gao, Shu; Bai, Xu

Book ID: 120340818
Publisher: American Chemical Society
Year: 2005
Tongue: English
Weight: 71 KB
Volume: 7
Category: Article
ISSN: 1523-7060
DOI: 10.1021/ol050181f

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## 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