Wm. Kazmierski et Jd. Mcdermed, A convenient synthesis of the orthogonally-protected benzodiazepine-2,5-dione scaffold, SYN COMMUN, 30(14), 2000, pp. 2629-2634
We have identified the benzodiazepine 2,5-dione 4 as a convenient, orthogon
ally-protected template, suitable for parallel solid-phase chemistry. Scaff
old 4 offers superior stability, compared to other, analogous benzodiazepin
e-2,5-diones, such as A. We describe a gram-scale synthesis of 4 in six ste
ps and in 25% yield.