Download MendeleyTwo Scaffolds from Two Flips: (alpha, beta)/(beta, gamma) CH2/NH "Met-Im" Analogues of dTTP.
Kadina, A.P., Kashemirov, B.A., Oertell, K., Batra, V.K., Wilson, S.H., Goodman, M.F., McKenna, C.E.(2015) Org Lett 17: 2586-2589
- PubMed: 25970636
- DOI: https://doi.org/10.1021/acs.orglett.5b00799
- Primary Citation of Related Structures:
4RT2, 4RT3 - PubMed Abstract:
Novel α,β-CH2 and β,γ-NH (1a) or α,β-NH and β,γ-CH2 (1b) "Met-Im" dTTPs were synthesized via monodemethylation of triethyl-dimethyl phosphorimido-bisphosphonate synthons (4a, 4b), formed via a base-induced [1,3]-rearrangement of precursors (3a, 3b) in a reaction with dimethyl or diethyl phosphochloridate. Anomerization during final bromotrimethylsilane (BTMS) deprotection after Mitsunobu conjugation with dT was avoided by microwave conditions. 1a was 9-fold more potent in inhibiting DNA polymerase β, attributed to an NH-group interaction with R183 in the active site.
Organizational Affiliation:
†Department of Chemistry, Dana and David Dornsife College of Letters, Arts and Sciences, University of Southern California, University Park Campus, Los Angeles, California 90089, United States.
