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ANTHRANOID VÀ DƯỢC LIỆU CHỨA ANTHRANOID - ThS.DS. Huỳnh Anh Duy

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Vị trí tƣơng đối của các OMA trên bản Si-gel<br />

Chrysophanol<br />

Physcion<br />

Emodin<br />

Aloe emodin<br />

Rhein<br />

Acid emodic<br />

Rf cao<br />

Rf thấp<br />

1,8 di-OH, 3-Me<br />

1,8 di-OH, 3-Me, 6-OMe<br />

1,8,6 tri-OH, 3-Me<br />

1,8 di-OH, 3-CH 2 OH<br />

1,8 di-OH, 3-COOH<br />

1,8,6 tri-OH, 3-COOH<br />

tính phân cực :<br />

COOH > CH 2 OH > CH 3<br />

tri-OH > di-OH<br />

33

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