Synthesis and derivatization of 4-arylsulfonylthiophene- and furan-2-sulfonamides
作者:George D. Hartman、Wasyl Halczenko
DOI:10.1002/jhet.5570270202
日期:1990.2
Novel 4-arylsulfonylthiophene- and furan-2-sulfonamides are prepared from the 3-arylsulfonyl heterocycle via chlorosulfonation with chlorosulfonic acid/phosphorus pentachloride. Free radical bromination affords bromomethyl analogues that are precursors to amine derivatives of the parent thiophenesulfonamides. Instability of the furansulfonyl chlorides to free radical bromination necessitated a sequence
HARTMAN, GEORGE D.;HALEZENKO, WASYL, J. HETEROCYCL. CHEM., 27,(1990) N, C. 127-134
作者:HARTMAN, GEORGE D.、HALEZENKO, WASYL
DOI:——
日期:——
4-Substituted thiophene- and furan-2-sulfonamides as topical carbonic anhydrase inhibitors
作者:George D. Hartman、Wasyl Halczenko、Robert L. Smith、Michael F. Sugrue、Pierre J. Mallorga、Stuart R. Michelson、William C. Randall、Harvey Schwam、John M. Sondey
DOI:10.1021/jm00099a010
日期:1992.10
A series of 4-substituted thiophene- and furan-2-sulfonamides was prepared and was found to possess nanomolar-level potency for inhibition of human carbonic anhydrase II in vitro. Selected examples from this group were further evaluated for their potential to act as topically effective ocular hypotensive agents in the ocular normotensive albino rabbit and the ocular alpha-chymotrypsinized rabbit. Solubility studies in water and pH 7.4 buffer were carried out to estimate the ability of compounds to be formulated in solution. The sensitization potential of key representative structures was determined by in vitro glutathione reactivity studies and guinea pig maximization testing.