Fig. 2From: Engineering of small-molecule lipidic prodrugs as novel nanomedicines for enhanced drug deliveryConjugation strategies for lipidic prodrugs. A Drugs conjugated with fatty acids at the carboxylic acid end or the ω-carbon. B Drugs conjugated to glycerides at the sn2 position. C Drugs conjugated with steroids at the hydroxyl group of the steroidal ring. D Drugs conjugated to phospholipids via the sn2 hydroxyl group or via phosphate groupBack to article page