NOVEL CRYSTAL FORMS OF TRICYCLIC BENZOPYRAN COMPOUND AND PROCESSES FOR PRODUCING SAME

• Main Authors: UMEDA, YASUHIRO, KAWAHARA, SHIRO, TAKADA, YASUTAKA, KAMON, MIYAKO
• Format: Patent
• Language: English; French; Japanese
• Published: 04.11.2010
• Subjects: CHEMISTRY; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY

Crystal forms of (3R,4S)-7-hydroxymethyl-2,2,9-trimethyl-4-(phenethylamino)-3,4-dihydro-2H-pyrano[2,3-g]qunolin-3-ol, which is an excellent medicine, and processes for producing the crystal forms. The processes comprise crystallizing (3R,4S)-7-hydroxymethyl-2,2,9-trimethyl-4-(phenethylamino)-3,4-dih...