Solution-phase parallel synthesis of Hsp90 inhibitors.
J Comb Chem
; 11(5): 860-74, 2009.
Article
in En
| MEDLINE
| ID: mdl-19583220
ABSTRACT
As part of an oncology chemistry program directed toward discovery of orally bioavailable inhibitors of the 90 kDa heat shock protein (Hsp90), several solution-phase libraries were designed and prepared. A 2 x 89 library of racemic resorcinol amides was prepared affording 131 purified compounds. After evaluation in a binding assay, followed by an AKT-Luminex cellular assay, three potent analogs had functional activity between 0.1 and 0.3 microM. Resolution by preparative chiral SFC chromatography led to (+)-15, (+)-16, and (+)-17 having functional IC(50) = 27, 43, and 190 nM, respectively. (+)-15 exhibited high clearance in human hepatocytes driven primarily by glucuronidation as confirmed by metabolite identification. A second 8 x 14 exploratory library was designed to investigate heterocyclic replacements of the resorcinol ring. The second library highlights the use of the (-)-sparteine-mediated enantioselective Pd-catalyzed alpha-arylation of N-Boc-pyrrolidine to prepare chiral 2-arylpyrrolidines in parallel.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Chromatography, Gel
/
HSP90 Heat-Shock Proteins
Limits:
Humans
Language:
En
Journal:
J Comb Chem
Journal subject:
QUIMICA
Year:
2009
Type:
Article
Affiliation country:
United States