A) Ring [A] is pyranonewith a-glycosidiclink
B) Ring [A] is furanone with a-glycosidic link
C) Ring [B] is pyranone with (3-glycosidic link
D) Ring [B] is furanone with a-glycosidic link
Correct Answer: A
Solution :
The ring A is pyranone. In\[\alpha -\]type glycosidic linkage, the hydroxyl group (OH) nearer the oxygen atom of ring is written on lower side, whereas in P-type it is written on upper side.
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