4-(1-hydroxy-2-N-substituted sulfonamido) ethyl-5-hydroxy-2(5H)-furanones and 4-(N-substituted sulfonamido)-2-ethenyl-5-hydroxy-2(5H)-furanones as anti-inflammatory agents

US5081261A · kind A · utility

Assignee

• Allergan, Inc. · US

Inventor

• Gary Lee · Dayuan District, TW

Key dates

• Filing date: Mar 23, 1990
• Grant date: Jan 14, 1992
• Expiry date: Mar 23, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D307/60
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Compounds of Formula 1, and of Formula 2, ##STR1## in which R.sub.1 is H or alkyl of 1 to 20 carbons, CO--R.sub.1.sup.* CO--O--R.sub.1.sup.* CO--NH--R.sub.1.sup.* or PO(OR.sub.1.sup.*).sub.2 or PO(OR.sub.1.sup.*)R.sub.1.sup.* where R.sub.1.sup.* independently is H, alkyl of 1 to 20 carbons, phenyl, or substituted phenyl; R.sub.2 is H, alkyl of 1 to 20 carbons, or R.sub.2 and Y jointly represent a heterocycle which incorporates the sulfonamide nitrogen in the ring as a heteroatom; R.sub.3 is H or alkyl of 1 to 20 carbons; X is H, R.sub.4, CO--R.sub.4, CO--O--R.sub.4, CO--NH--R.sub.4, CO--N--(R.sub.4).sub.2, PO(OR.sub.4).sub.2 or PO(OR.sub.4)R.sub.4, and R.sub.4 independently is H, phenyl, substituted phenyl, alkyl of 1 to 20 carbons or is alkyl of 1 to 20 carbons substituted with a hydroxyl, alkoxy, substituted amino, thioalkoxy, with a O--COR.sub.4.sup.* group or with a COR.sub.4.sup.* group where R.sub.4.sup.* is H, lower alkyl, OH, OR.sub.4.sup.**, NH.sub.2, NHR.sub.4.sup.** or N(R.sub.4.sup.**).sub.2 group where R.sub.4.sup.** independently is H or lower alkyl, with the proviso that when X is CO--O--R.sub.4 or is CO--NH--R.sub.4 then R.sub.4 is not hydrogen, and Y is H, phenyl o…