Structures and properties of the sugars obtained from the chromomycins
Miyamoto, M.; Kawamatsu, Y.; Shinohara, M.; Nakadaira, Y.; Nakanehi, K.
Tetrahedron 22(8): 2785-2799
ISSN/ISBN: 0040-4020 DOI: 10.1016/s0040-4020(01)99070-2
The water soluble fraction of the acid hydrolysate of chromomycin-A3 when chromatographed on cellulose powder yields 4 new sugars, chromose A, chromose B, chromose C and chromose D. The structures ol these sugars were elucidated. Interestingly, all four are 2.6-dideoxy sugars, and furthermore, chromose B belongs to the L-series while the other 3 are D-sugars. The hydrolysis of chromomycin A2 affords a fifth sugar, which was identified as 4-O-isobutyryldeacetylchromose B.