- Sulfonium ylides 7. Influence of substituents in the imide fragment on the regioselectivity of intramolecular cyclization of phthalimido-containing keto-stabilized sulfonium ylides
-
The intramolecular cyclization of keto-stabilized sulfonium ylides obtained from β-alanine and containing various imide fragments was studied. On heating in toluene in the presence of PhCO2H, ylides containing a phthalimide moiety are converted into indolizidine-2,6-dione derivatives, whereas those incorporating a 4-methyl-1,2,3,6-tetrahydrophthalimide or pyrrolidine-2,5-dione moieties do not undergo cyclization.
- Galin,Lakeev,Tolstikov
-
-
Read Online
- Method of inhibiting binding of nerve growth factor to p75 NTR receptor
-
The present invention relates to compositions which inhibit the binding of nerve growth factor to the p75NTRcommon neurotrophin receptor and methods of use thereof. In one embodiment, the compound which inhibits binding of nerve growth factor to p75NTRcomprises, particularly when bound to nerve growth factor, at least two of the following: (1) a first electronegative atom or functional group positioned to interact with Lys34of nerve growth factor; (2) a second electronegative atom or functional group positioned to interact with Lys95of nerve growth factor; (3) a third electronegative atom or functional group positioned to interact with Lys88of nerve growth factor; (4) a fourth electronegative atom or functional group positioned to interact with Lys32of nerve growth factor; and (5) a hydrophobic moiety which interacts with the hydrophobic region formed by Ile31, Phe101and Phe86of nerve growth factor.
- -
-
-