Novel chromane derivative and methods for preparation thereof and skin external application composition containing thereof

• Main Authors: JANG, I SEOP, SHIN, HYEON JEONG, NAM, CHUN JA, BAEK, HEUNG SU, KIM, DEOK HUI
• Format: Patent
• Language: English; Korean
• Published: 14.11.2003
• Edition: 7
• Subjects: CHEMISTRY; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY

PURPOSE: Chroman derivatives, a preparation method thereof, and a dermatoiogics composition containing the same compounds are provided. The compounds have strong antioxidant activity and melanin formation inhibiting activity. CONSTITUTION: Chroman derivatives represented by the formulae 1 and 2 are...