II型强心苷是A.苷元-(D-葡萄糖)x B.苷元-(6-去氧糖)x-(D-葡萄糖)y C.苷元-(2,6-去氧糖)x-(D-葡萄糖)y D.苷元-(D-葡萄糖

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问题 II型强心苷是

选项 A.苷元-(D-葡萄糖)x
B.苷元-(6-去氧糖)x-(D-葡萄糖)y
C.苷元-(2,6-去氧糖)x-(D-葡萄糖)y
D.苷元-(D-葡萄糖)y-(2,6-二去氧糖)x
E.苷元-(6-去氧糖甲醚)x-(D-葡萄糖)y

答案B

解析II型强心苷是苷元-(6-去氧糖)x-(D-葡萄糖)y; 苷元-(D-葡萄糖)x为III型强心苷;
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