A Concise Route to Structurally Diverse DMP 323 Analogues via Highly Functionalized 1,4-Diamines
摘要:
[GRAPHICS]The utility of functionalized 1,4-diamines, produced via a temporary phosphorus tether (P-tether)/ring-closing metathesis (RCM)/hydrolysis sequence, is demonstrated in the synthesis of structurally diverse DMP 323 analogues. These 1,4-diamines are transformed into various seven-membered heterocycles via insertion of the appropriate nuclei "X". Subsequent derivatization generates heterocyclic diols that are similar in structure to DMP 323, a notable member of a class of highly potent inhibitors of HIV protease.
A Temporary Phosphorus Tether/Ring-Closing Metathesis Strategy to Functionalized 1,4-Diamines
摘要:
[GRAPHICS]The synthesis of 1,4-diamines containing the (Z)-1,4-diaminobut-2-ene subunit via a temporary phosphorus tether/RCM strategy is described. We have developed a new method utilizing phosphorus nuclei as suitable temporary tethers for the coupling of nonracemic allylic amines. This approach allows for the generation of C-2-symmetric and unsymmetric 1,4-diamines 1-3, which may have considerable synthetic and biological utility. This represents the first synthetic pathway for the expedient coupling of two amines via a temporary tether approach.