Owner Tokuyama Corporation

Inventors Takenaka, Junji; Izumi, Shinobu

Agent Phillips Ormonde Fitzpatrick

Pub. Number AU-A-2007288747

PCT Pub. Number WO2008/023828

Priority 2007-117488 26.04.07 JP; 2006-228042 24.08.06 JP

Filing date 22 August 2007

Wipo publication date 28 February 2008

C07D 311/94 (2006.01) Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings

C07D 405/10 (2006.01) Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom

C07D 413/10 (2006.01) Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms

C07D 493/04 (2006.01) Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system

C07D 493/10 (2006.01) Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system

C07D 493/20 (2006.01) Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system

C07D 495/04 (2006.01) Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms

C09K 9/02 (2006.01) Tenebrescent materials, i.e. materials for which the range of wavelengths for energy adsorption is changed as a result of excitation by some form of energy - Organic tenebrescent materials

G02B 5/23 (2006.01) Optical elements other than lenses