Development of vizantin, a safe immunostimulant, based on the structure-activity relationship of trehalose-6,6'-dicorynomycolate.
Yamamoto H, Oda M, Nakano M, Watanabe N, Yabiku K, Shibutani M, Inoue M, Imagawa H, Nagahama M, Himeno S, Setsu K, Sakurai J, Nishizawa M.
Vizantin, 6,6'-bis-O-(3-nonyldodecanoyl)-α,α'-trehalose, was developed as a safe immunostimulator on the basis of a structure-activity relationship (SAR) study with trehalose 6,6'-dicorynomycolate (TDCM). It was possible to synthesize vizantin on a large scale more easily than in the case of TDCM, and the compound exhibited more potent prophylactic effect on experimental lung metastasis of B16-F0 melanoma cells. Because vizantin stimulated human macrophages, it is a promising candidate for clinical application.