Page 33 - วารสารกรมการแพทย์แผนไทยฯ ปีที่ 4 ฉบับที่ 1
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               3β-hydroxylup-20(29)-en-27-oic acid: Rû = Ré= H  3β-hydroxylup-12-en-28-oic acid
               3β-acetoxylup-20(29)-en-287-oic acid: Rû=Ac; Ré=H
               methyl-3β-hydroxylup-20(29)-en-27-oate: Rû=H;Ré= CH
                                                           3



















                              betulinic acid             hyptadienic acid: Rû=H; Rû=H
                                                         hyptadienic acid: acetate: Rû=Ac; Ré=H
                                                         methy hyptadienate: Rû=H; Ré=CH
                                                                                    3
                                                         acetyl methyl hyptadienate: Rû=Ac; Ré=CH
                                                                                           3















                           dehydroabietinol                      suaveolic acid: R=COOH
                                                                   suaveolol: R=CH OH
                                                                                2
                             √Ÿª∑’Ë 2  (µàÕ) Ÿµ√‚§√ß √â“ߢÕß “√‡§¡’∫“ß™π‘¥∑’Ëæ∫„π·¡ß≈—°§“
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