作者:Luis Miguel Menéndez Méndez、Anthony Deally、Donal F. O'Shea、Matthias Tacke
DOI:10.1002/hc.20668
日期:——
]cyclopentadienyl} titanium(IV) dichloride (4d). All the titanocenes had their cytotoxicity investigated through MTT-based preliminary in vitro testing on the Caki-1 cell lines to determinate their IC50 values. Titanocenes 4a–4c were found to have IC50 values of 120 ± 10, 83 ± 13, and 54 ± 12, µM respectively, whereas 4d showed no cytotoxic activity. © 2011 Wiley Periodicals, Inc. Heteroatom Chem 22:148–157
由 1-甲基-1 H-吡咯并[2,3-b]吡啶(1a),1-(甲氧基甲基)-1 H-吡咯并[2,3-b]吡啶(1b), 1-异丙基-1 H-吡咯并[2,3-b]吡啶(1c)和1-(4-甲氧基苄基)-1 H-吡咯并[2,3-b]吡啶(1d)在Vilsmeier-Haak条件下,相应的合成了 3 位(2a-2d)的醛。这些醛通过 Knoevenagel 缩合转化为相应的富烯 (3a-3d),并用 Li[BEt3H] 处理以获得相应的锂化环戊二烯中间体 (3'a-3'd)。这些中间体最后用 TiCl4 金属转移到钛,得到 7-azaindol-3-yl-取代的二茂钛双 [(1-methyl-1-H-pyrrolo[2,3-b]pyridin-3-yl)methyl ] 环戊二烯基} 二氯化钛 (IV) (4a), 双[(1-甲氧基甲基-1-H-吡咯并[2, 3-b]吡啶-3-基)甲基]环戊二