(19)
(11) EP 1 086 087 A1

(12)

(43) Date of publication:
28.03.2001 Bulletin 2001/13

(21) Application number: 99927468.1

(22) Date of filing: 10.06.1999
(51) International Patent Classification (IPC)7C07D 265/18, A61K 31/535
(86) International application number:
PCT/US9913/199
(87) International publication number:
WO 9964/405 (16.12.1999 Gazette 1999/50)
(84) Designated Contracting States:
AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE
Designated Extension States:
LT LV RO SI

(30) Priority: 11.06.1998 US 89981 P

(71) Applicant: Du Pont Pharmaceuticals Company
Wilmington, DE 19807 (US)

(72) Inventors:
  • RADESCA, Lilian, A.
    Newark, DE 19711 (US)
  • MAURIN, Michael, B.
    Wilmington, DE 19810 (US)
  • RABEL, Shelley, R.
    Landenberg, PA 19350 (US)
  • MOORE, James, R.
    Newark, DE 19702 (US)

(74) Representative: Beacham, Annabel Rose 
Frank B. Dehn & Co.,European Patent Attorneys,179 Queen Victoria Street
London EC4V 4EL
London EC4V 4EL (GB)

   


(54) CRYSTALLINE EFAVIRENZ