6533b873fe1ef96bd12d4c09

RESEARCH PRODUCT

3α,3′α-Bis(n-acetoxyphenylcarboxy)-5β-cholan-24-oic acid ethane-1,2-diol diesters (n = 2-4):13C NMR chemical shifts, variable-temperature and NOE1H NMR measurements and MO calculations of novel bile acid-based dimers

Jari TamminenPia MänttäriHannu SaloJuha LinnantoErkki Kolehmainen

subject

Lithocholic acidBile acidStereochemistrymedicine.drug_classChemical shiftDiolNuclear magnetic resonance spectroscopy of nucleic acidsGeneral ChemistryCarbon-13 NMRchemistry.chemical_compoundchemistryDesorptionmedicineGeneral Materials ScienceMolecular orbital

description

Three novel bile acid-based molecular dimers, 3α,3′α-bis(n-acetoxyphenylcarboxy)-5β-cholan-24-oic acid ethane-1,2-diol diesters (n = 2–4), 1–3, were synthesized from lithocholic acid (3α-hydroxy-5β-cholan-24-oic acid) ethane-1,2-diol diester and isomeric n-acetoxybenzoyl chlorides (n = 2–4). Their cleft type conformational preferences were suggested theoretically by PM3 molecular orbital calculations. Molecular weights determined by the matrix-assisted laser desorption/ionization time-of-flight technique and 13C NMR chemical shifts of the 1–3 are also presented. Copyright © 2000 John Wiley & Sons, Ltd.

https://doi.org/10.1002/1097-458x(200010)38:10<877::aid-mrc750>3.0.co;2-2