Patent ID: 7750043

Claim:
A retinoid ester having the formula R—O—R 1 where R is a retinoyl of a retinoid selected from the group consisting of all-trans-retinoic acid, 9-cis-retinoic acid, 11-cis-retinoic acid, 13-cis-retinoic acid, 9,13-di-cis-retinoic acid, TTNPB, TTNN, TTAB, UAB8, AM80, AM580, AM555S, AGN 193836, AGN 190299, CD 2019, CD 417, R o 48-2249, R o 44-4753, R o 10-9359, SR 11254, BMS 185354, AGN 190299, CD 437 (AHPN), SR 11247, SR 11217, SR 11237, AGN 191701, LDG 100268, LDG 100568, LGD 100754, R o 25-7386, BMS 188970, SR 11004, and SR 11203, and R 1 is a highly sterically hindered functional group comprising a pinacol structure having the formula