... Tetrahedron. Volume 55, Issue 4, 22 January 1999, Pages 909–918. ... Tetrahedron Lett., 28 (1987), pp. 521–522. ... 2,3-dihydro-5-phenyl-1-(2,2,2-trifluoroethyl)-1H-benzo[e][1,4]diazepine (4) was purchased from Fabbrica Italiana Sintetici; for the synthesis, see J. Med. ...