Patent ID: 7074943
Filing Date: 2006-07-11
Classification: C07D,G02B

Abstract:
1. A naphthopyran compound of the following formula: wherein (a) F is a 5- to 7-member saturated heterocyclic ring group fused to i side of the naphthopyran ring and containing an oxygen atom at the position adjacent to position 7-, or 8-position; (b) R group, in which R 9 and R 10 , which are the same or different, independently representing a linear or branched alkyl group consisting of 1 to 6 carbon atoms, or representing (together with the nitrogen atom to which they are bound) a 5- to 7-membered ring which consists of at least one other heteroatom selected from oxygen, sulfur and nitrogen, said nitrogen being optionally substituted with a group that is a linear or branched alkyl group consisting of 1 to 6 carbon atoms, (c) R R 8 , R 9 , and R 10 having their respective definitions given above for the amine substituents of the values R 6 , (d) R (e) each R