Novel synthesis of the hexahydroimidazo[1,5b]isoquinoline scaffold: application to the synthesis of glucocorticoid receptor modulators.

Abstract:

:The first stereoselective synthesis of the hexahydroimidazo[1,5b]isoquinoline (HHII) scaffold as a surrogate for the steroidal A-B ring system is described. The structure-activity relationships of the analogs derived from this scaffold show that the basic imidazole moiety is tolerated by the glucocorticoid receptor (GR) in terms of binding affinity, although the partial agonist activity in the transrepressive assays depends on the substitution pattern on the B-ring. More importantly, most compounds in the HHII series bearing a tertiary alcohol moiety on the B-ring are either inactive or significantly less active in inducing GR-mediated transactivation, thus displaying a "dissociated" pharmacology in vitro.

journal_name

J Med Chem

authors

Xiao HY,Wu DR,Malley MF,Gougoutas JZ,Habte SF,Cunningham MD,Somerville JE,Dodd JH,Barrish JC,Nadler SG,Dhar TG

doi

10.1021/jm901551w

subject

Has Abstract

pub_date

2010-02-11 00:00:00

pages

1270-80

issue

3

eissn

0022-2623

issn

1520-4804

journal_volume

53

pub_type

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