Synthesis and inhibitory effect of a trisubstrate transition state analogue for UDP glucuronosyltransferases

DOI: 10.1016/S0960-894X(97)00251-5

Source and publish data:

Bioorganic and Medicinal Chemistry Letters p. 1501 - 1506 (1997)

Update date:2022-08-03

Topics:

Authors:

Timmers Timmers

Dekker Dekker

Buijsman

Van Der Marel

Ethell Ethell

Anderson

Burchell

Mulder Mulder

Van Boom

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Article abstract of DOI:10.1016/S0960-894X(97)00251-5

Trisubstrate UGT transition state analogue 2 is readily accessible by nucleophilic ring-opening of 1,2-anhydroglucose precursor 5 with diethylmalonate anion followed by reduction of the ethyl ester moieties (6→7). Subsequent C₆ oxidation (8→9), NIS/cat. TfOH-mediated introduction of the androsterylmethylene unit (12→15) and phosphitylation with 5'-uridine phosphoramidite 16 furnished, after oxidation and deprotection, target derivative 2, the two individual diastereomers of which (2a and 2b) were separated by HPLC. Trisubstrate analogues 2a,b show a different inhibition pattern for several UGT isoforms, indicating isoenzyme selectivity. Moreover, C(7'')-epimers 2a and 2b exert a different inhibitory effect on UGT2B15.

Full text of DOI:10.1016/S0960-894X(97)00251-5

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