Abstract
A molecular model has been synthesized to determine the hydrogen- bonding strength between AT and T in the base triplet, T:AT. A strong preference (>95%) of Watson-Crick mode along with 91% hydrogen-bonded conformation is observed in the model compound. The association constants of the AT model with 1-propyluracil and glutarimide are 15 M-1 and 5.2 M-1, respectively, in CDCl3 at 296 ± 0.5 K. Negative cooperativity by pre- existing hydrogen bonds might be involved in the intermolecular binding events.
Original language | English |
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Pages (from-to) | 8337-8340 |
Number of pages | 4 |
Journal | Tetrahedron Letters |
Volume | 38 |
Issue number | 48 |
DOIs | |
Publication status | Published - 1997 Dec 1 |
All Science Journal Classification (ASJC) codes
- Biochemistry
- Drug Discovery
- Organic Chemistry