Isohexide Dinitriles: A Versatile Family of Renewable Platform Chemicals

Incorporation of an Isohexide Subunit Improves the Drug-like Properties of Bioactive Compounds

An enhanced ability to pre-engineer favorable drug-likeness qualities into bioactive molecules would focus and streamline the drug development process. We find that phenols, carboxylic acids, and a purine react with isosorbide ("GRAS" designated) under Mitsunobu coupling conditions to deliver the isoidide conjugates selectively and efficiently. Such conjugates show improved solubility and permeability properties compared with the bare scaffold compounds themselves, and the purine adduct may have applications as a 2'-deoxyadenosine isostere. We anticipate additional benefits, implied by their structures, in metabolic stability and reduced toxicity of the isoidide conjugates as well.

Biodegradable copolyesters based on a “soft” isohexide building block with tunable viscoelasticity and self-adhesiveness

PBIA copolyesters synthesised using a novel glycosylated monomer (IIDMC) have faster degradation and tunable self-adhesiveness.

2-O-Monoalkyl isosorbide ethers with C8, C10, C12 and C14 chain lengths

The title compounds, 6-(octyloxy)hexa-hydro-furo[3,2-b]furan-3-ol, C14H26O4, 6-(decyl-oxy)hexa-hydro-furo[3,2-b]furan-3-ol, C16H30O4, 6-(do-decyl-oxy)hexa-hydro-furo[3,2-b]furan-3-ol, C18H34O4, and 6-(tetra-decyl-oxy)hexa-hydro-furo[3,2-b]furan-3-ol, C20H38O4, consist of a polar headgroup (isosorbide) and a lipophilic alkyl chain linked via an ether bridge. Isosorbide is a biobased diol, containing two fused furan rings. One inter-molecular hydrogen bond connects the mol-ecules between the free endo hy-droxy group and the opposing ether oxygen of the V-shaped head group. Thus the mol-ecule layers inter-lock like in a herringbone pattern parallel to the bc plane.