Preparation of novel (Z)-4-ylidenebenzo[b]furo[3,2-d][1,3]oxazines and their biological activity
作者:Yukako Tabuchi、Yuko Ando、Hidemi Kanemura、Ikuo Kawasaki、Takahiro Ohishi、Masao Koida、Ryo Fukuyama、Hiromichi Nakamuta、Shunsaku Ohta、Kiyoharu Nishide、Yoshitaka Ohishi
DOI:10.1016/j.bmc.2009.04.017
日期:2009.6
mixture of (E)- and (Z)-(E)-2-aralkenylbenzo[b]furo[3,2-d][1,3]oxazin-4-ylidene}acetaldehydes (5) with a characteristic exo-formylmethylene group on the oxazine ring. The Z-isomer was more stable than the E-isomer. The Z-isomers ((Z)-5) were reacted with phosphonate reagents under two different conditions to obtain various butadiene derivatives (12) containing benzo[b]furo[3,2-d][1,3]oxazine skeleton
2-乙酰基-3-酰基氨基苯并[ b ]呋喃 ( 9d – o ) 与 Vilsmeier (VM) 试剂反应得到 ( E )- 和 ( Z )-( E )-2-芳烯基苯并 [ b ]furo的混合物[3,2- d ][1,3]oxazin-4-ylidene}乙醛 ( 5 ),在恶嗪环上具有特征性的外-甲酰基亚甲基。Z-异构体比E-异构体更稳定。Z-异构体((Z)-5)在两种不同的条件下与膦酸酯试剂反应,得到各种丁二烯衍生物(12 ) 含有苯并[ b ]呋喃[3,2- d ][1,3]恶嗪骨架。评价了典型化合物(5和12)的抗破骨性骨吸收活性、对 cysLT1 受体的拮抗活性和对 MIA PaCa-2 和 MCF-7 的生长抑制活性。化合物12f和12j显示出与 E 2 (17β-雌二醇)相当的有效抗破骨性骨吸收活性。