DETERMINATION OF ABSOLUTE-CONFIGURATION AND BIOLOGICAL-ACTIVITY OF NEW IMMUNOSUPPRESSANTS, MYCESTERICIN-D, MYCESTERICIN-E, MYCESTERICIN-F AND MYCESTERICIN-G
T. Fujita et al., DETERMINATION OF ABSOLUTE-CONFIGURATION AND BIOLOGICAL-ACTIVITY OF NEW IMMUNOSUPPRESSANTS, MYCESTERICIN-D, MYCESTERICIN-E, MYCESTERICIN-F AND MYCESTERICIN-G, Journal of antibiotics, 49(9), 1996, pp. 846-853
Mycestericins D, E, F and G were isolated from the culture broth of My
celia sterilia ATCC 20349 as potent immunosuppressants. Mycestericins
F and G were identical with dihydromycestericins D and E, respectively
. Their absolute configurations were determined by use of the modified
MOSHER's method and by comparison of the CD spectra of their benzoate
derivatives with those of synthetic analogs. Mycestericins D, E, F an
d G suppressed the proliferation of lymphocytes in the mouse allogenei
c mixed lymphocyte reaction.