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大果榕茎的化学成分(英文)



全 文 :天然产物研究与开发 Nat Prod Res Dev 2013,25:624-627
文章编号:1001-6880(2013)5-0624-04
Received:August 10,2012 Accepted:November 13,2012
Foundation Item:The 973 Program,Ministry of Science and Technology
of China,(No. 2011Cb512010) ;National Natural Science Foundation
of China(Nos. 21166009;81160391)
* Corresponding author E-mail:sxp628@ 126. com
大果榕茎的化学成分
邵泰明,宋小平* ,韩长日,陈光英,陈文豪,戴春燕,宋鑫明
海南师范大学教育部热带药用植物化学省部共建重点实验室;海南师范大学化学化工学院,海口 571158
摘 要:运用硅胶柱色谱和 Sephadex LH-20 柱色谱,以及制备薄层色谱等方法从大果榕茎的 95%乙醇提取物中
分离得到 11 个化合物,通过理化性质和波谱数据鉴定为:染料木黄酮(1) ,wighteone(2) ,5 7,4,trihydroxy-6-(2-
hydroxy-3-methyl-3-butenyl)isoflavone(3) ,5 7,4-trihydroxy-3-(2-hydroxy-3-methyl-3-butenyl)isoflavone(4) ,alpin-
umisoflavone(5) ,derrone(6) ,(3R)-5-formylmellein(7) ,3β-(1-Hydroxyethyl)-7- hydroxy-1-isobenzofuranone(8) ,反
式对羟基肉桂酸乙酯(9) ,β-谷甾醇(10) ,β-胡萝卜苷(11)。化合物 4,7,8,9 为首次从该属植物中分离得到,化
合物 1-10 为首次从该植物中分离得到。
关键词:大果榕;榕属;化学成分;异黄酮
中图分类号:R284. 2 文献标识码:A
Chemical Constituents from the Stems of Ficus auriculata Lour
SHAO Tai-ming,SONG Xiao-ping* ,HAN Chang-ri,CHEN Guang-ying,
CHEN Wen-hao,DAI Chun-yan,SONG Xin-ming
Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education,Hainan Normal University;College of
chemistry and chemical engineering,Hainan Normal University,Hainan 571158,China
Abstract:Eleven compounds were isolated from 95% ethanol extracts of the stems of Ficus auriculata Lour. The constit-
uents were isolated and purified by silica gel column chromatography,Sephadex LH-20 and preparative TLC. Their struc-
tures were identified on the physiochemical characteristics and basis of spectral data. Their structures were identified as
genistein(1) ,wighteone(2) ,5 7,4,trihydroxy-6-(2-hydroxy-3-methyl-3-butenyl)isoflavone(3) ,5 7,4-trihydroxy-3-
(2-hydroxy-3-methyl-3-butenyl)isoflavone(4) ,alpinumisoflavone(5) ,derrone(6) ,(3R)-5-formylmellein(7) ,3β-(1β-
hydroxyethyl)-7-hydroxy-1-isobenzofuranone(8) ,trans-p-hydroxycinnamic acid ethyl ester(9) ,β-sitosteral(10) ,and β-
daucosterol(11). Compounds 4,7,8,9 were reported from the genus Ficus for the first time. Compounds 1-10 were isola-
ted from this plant material for the first time.
Key words:Ficus auricalata;Ficus;Chemical constituents;isoflavone
Introduction
The genus of Ficus comprises about 1000 species in the
world,among which about 120 are distributed in China
[1]. F. auriculata distributed in Ledong,Dongfang,
Baoting,Lingao of Hainan province China [2]. It has
been used as Chinese folk medicine for the treatment of
hyperactivity cough,nocturnal emission[3]. The leaves
of F. auriculata have antioxidant,antiinflammatory,an-
tidiabetic and hepatoprotective activity,and fruit has a
strong antibacterial activity [4-6]. In order to investigate
the constituents of this plant,eleven compounds were i-
solated from the 95% ethanol extracts and identified as
genistein(1) ,wighteone(2) ,5 7,4,-trihydroxy-6-(2-
hydroxy-3-methyl-3- butenyl)isoflavone(3) ,5,7,4-
trihydroxy-3-(2-hydroxy-3-methyl-3-butenyl ) isofla-
vone(4) ,alpinumisoflavone(5) ,derrone(6) ,(3R)-5-
formylmellein(7) ,3β-(1-Hydroxyethyl)-7-hydroxy-1-
isobenzofuranone(8) ,trans-p-phydroxycinnamic acid
ethyl ester(9) ,β-sitosteral(10) ,and β-daucosterin
(11). Compounds 4,7,8,9 were reported from the ge-
nus Ficus for the first time. Compounds 1-10 were iso-
lated from this plant material for the first time.
Experimental
Apparatus and reagents
Melting points were determined on a WRX-4 mi-
cromelting-point apparatus(uncorrected). NMR spectra
were measured on a Bruker AV-400 instrument with
TMS as the internal standard. Silica gel used for col-
umn chromatography(CC)was supplied by Qingdao
Marine Chemical Factory(Qingdao,China). Sephadex
LH-20 was used(Pharmacia,Sweden). TLC and pre-
parative TLC were purchased from Yantai Chemical In-
dustry Institute(Yantai,China). All solvents were pur-
chased from XiLong Chemical Reagent Factory(Shan-
Tou,China). The optical density was measured by an
enzyme-labeled detector(Elx800,BioTek Instruments,
Inc).
Plant materials
The sterm of F. auriculata were collected in Jian feng
ling National Forest Park,Hainan Province China,in
2010,and authenticated by associate Prof. Zhong
Qiong-Xin,College of Life Science,Hainan Normal U-
niversity. A voucher specimen was deposited in the Key
Laboratory of Tropical Medicinal Plant Chemistry of
Ministry of Education,Hainan Normal University.
Extraction and isolation
The dried sterm of F. auriculata(13. 5 kg)were pow-
dered and extracted with 95% aqueous ethanol(v /v)
three times at room temperature(3 × 5 d). The extract
was suspended in 2. 0 L of water and then partitioned
with petroleum ether,CHCl3,EtOAc successively. The
petroleum ether soluble fraction(240 g)was chromato-
graphed on a silica gel column eluted with petroleum e-
ther /EtOAc(100∶ 1 to 1∶ 100,v /v)to afford major frac-
tions 1-20. Fraction 4(3. 45g)purified by recrystalliza-
tion to yield compounds 10(750. 3mg) ;Fraction 6
(5. 40 g)was subjected to CC(silica gel,petroleum e-
ther /EtOAc,10 ∶ 1 to 0 ∶ 1)and purified by CC(Sepha-
dex LH-20,CHCl3 /MeOH,2 ∶ 3)to provide compounds
5(45. 4mg) ,6(23. 5mg) ,and 7(13. 0 mg) ;Fraction 7
(2. 40 g)was further chromatographed over Sephadex
LH-20(CHCl3 /MeOH,2 ∶ 3) ,followed by PTLC to
give compounds 8(13. 3 mg) ,9(8. 7 mg) ;Fraction 10
(4. 70 g)was further chromatographed over Sephadex
LH-20(CHCl3 /MeOH,2 ∶ 3) ,followed by PTLC to
give compounds 1(20. 1 mg) ,2(13. 5 mg) ,3(24. 4
mg)and 4(13. 2 mg). The ethyl acetate fraction(23g)
was subjected to silica gel CC(CHCl3 /MeOH 100∶ 1→
2∶ 1)to yield 11(14. 4 mg).
Identification
Fig. 1 Structures of compounds 1-9
Compound 1 White powder,C15 H10 O5,
1H NMR
(Acetone,400 MHz) ,δ:13. 04(1H,s,OH-5) ,8. 18
(1H,s,H-2) ,7. 46(2H,d,J = 7. 6 Hz,H-2,6) ,
6. 91(2H,d,J = 7. 6 Hz,H-3,5) ,6. 42(1H,s,H-
8) ,6. 29 (1H,s,H-6) ;13 C NMR (Acetone,100
MHz) ,δ:182. 6(C-4) ,166. 1(C-7) ,164. 9(C-5) ,
160. 0(C-8a) ,159. 5(C-4) ,155. 3(C-2) ,132. 2(C-
2,6) ,125. 0(C-3) ,124. 0(C-1) ,117. 0(C-3,5) ,
107. 1(C-4a) ,100. 8(C-6) ,95. 5(C-8). It was identi-
fied as genistein by comparison of the physical and
spectral data with the reported data [7].
Compound 2 Yellow powder,C20 H18 O5,
1H NMR
(MeOD,400 MHz) ;δ:13. 01(1H,s,OH-5) ,8. 01
(1H,s,H-2) ,7. 36(2H,d,J = 8. 0 Hz,H-2,6) ,
6. 84(2H,d,J = 8. 0 Hz,H-3,5) ,6. 37(1H,s,H-
8) ,5. 23(1H,t,J = 7. 2 Hz,H-2″) ,3. 31(2H,d,over-
lapped,H-2″) ,1. 78(3H,s,H-4″) ,1. 66(3H,s,H-
5″) ;13 C NMR(MeOD,100 MHz)δ:182. 3(C-4) ,
163. 7(C-7) ,160. 5(C-5) ,158. 8(C-4) ,157. 6(C-
8a) ,154. 6(C-2) ,132. 1(C-3″) ,131. 5(C-2,6) ,
124. 6(C-3) ,123. 5(C-1) ,123. 4(C-2″) ,116. 3(C-
3,5) ,113. 1(C-6) ,106. 1(C-4a) ,93. 9(C-8) ,26. 0
(C-5″) ,22. 3(C-1″) ,18. 0(C-4″). It was identified as
wighteone by comparison of the physical and spectral
data with the reported data[8].
526Vol. 25 SHAO Tai-ming,et al:Chemical Constituents from the Stems of Ficus auriculata Lour
Compound 3 Yellow powder,C20 H18 O6,
1H NMR
(MeOD,400 MHz) ,δ:13. 16(1H,s,OH-5) ,8. 03
(1H,s,H-2) ,7. 36(2H,d,J = 8. 0 Hz,H-2,6) ,
6. 84(2H,d,J = 8. 0 Hz,H-3,5) ,6. 38(1H,s,H-
8) ,4. 76,4. 70(1H each,s,= CH2) ,4. 41(1H,t,J =
6. 4 Hz,H-2″) ,3. 01(1H,dd,J = 6. 4 Hz,J = 13. 6
Hz,Ha-1″) ,2. 90(1H,dd,J = 7. 2 Hz,J = 13. 6 Hz,
Hb-1″) ,1. 83(3H,s,H-4″) ;
13 C NMR(MeOD,100
MHz) ,δ:182. 3(C-4) ,164. 6(C-7) ,161. 3(C-5) ,
158. 8(C-4) ,158. 0(C-8a) ,154. 7(C-2) ,148. 7(C-
3″) ,131. 5(C-2,6) ,124. 7(C-3) ,123. 5(C-1) ,
116. 3(C-3,5) ,111. 1 (= CH2) ,110. 5 (C-6) ,
106. 1(C-4a) ,94. 4(C-8) ,76. 3(C-2″)29. 8(C-1″) ,
17. 8(C-4″). It was identified as 5,7,4,2-hydroxy-3-
methyl-3-butenyl isoflavone by comparison of the phys-
ical and spectral data with the reported data[9].
Compound 4 White powder,C20 H18 O6,
1H NMR
(Acetone,400 MHz) ,δ:13. 06(1H,s,OH-5) ,8. 15
(1H,s,H-2) ,7. 37(1H,s,H-2) ,7. 34(1H,d,J =
8. 0 Hz,H-6) ,6. 87(1H,d,J = 8. 0 Hz,H-5) ,6. 41
(1H,s,H-8) ,6. 28(1H,s,H-6) ,4. 98,4. 78(1H
each,s,= CH2) ,4. 42(1H,t,J = 6. 0 Hz,H-2″) ,2. 91
(2H,m,overlapped,H-1″) ,1. 81(3H,s,H-4″) ;13 C
NMR(Acetone,100 MHz) ,δ:182. 6(C-4) ,166. 2(C-
7) ,164. 9(C-5) ,160. 0(C-8a) ,158. 1(C-4) ,155. 3
(C-2) ,149. 5(C-3″) ,134. 0(C-2) ,130. 4(C-6) ,
127. 8(C-3) ,125. 1(C-3) ,124. 1(C-1) ,117. 7(C-
5) ,111. 6(= CH2) ,107. 1(C-4a) ,100. 8(C-6) ,
95. 5(C-8) ,78. 0(C-2″) ,39. 8(C-1″) ,19. 3(C-4″). It
was identified as 5,7,4-trihydroxy-3-(2-hydroxy-3-
methyl-3-butenyl)isoflavone by comparison of the
physical and spectral data with the reported data[10].
Compound 5 Yellow crystal,C20 H16 O5,
1H NMR
(CDCl3,400 MHz)δ:13. 08(1H,s,OH-5) ,7. 81
(1H,s,H-2) ,7. 33(2H,d,J = 8. 4 Hz,H-2,6) ,
6. 83(2H,d,J = 8. 4 Hz,H-3,5) ,6. 72(1H,d,J =
10. 4 Hz,H-4″) ,6. 34(1H,s,H-8) ,5. 62(1H,d,J =
10. 4 Hz,H-3″) ,1. 47(6H,s,CH3-5″,6″) ;
13 C NMR
(CDCl3,100 MHz)δ:181. 1(C-4) ,159. 7(C-7) ,
157. 4(C-5) ,156. 9(C-8a) ,156. 1(C-4) ,152. 7(C-
2) ,130. 4(C-2,6) ,128. 3(C-3″) ,123. 7(C-3) ,
122. 9(C-1) ,115. 7(C-3,5) ,115. 5(C-4″) ,106. 1
(C-4a) ,105. 7(C-6) ,95. 0(C-8) ,78. 2(C-2″) ,28. 4
(C-5″,6″). It was identified as alpinumisoflavone by
comparison of the physical and spectral data with the
reported data[11].
Compound 6 Yellow crystal,C20 H16 O5,
1H NMR
(CDCl3,400 MHz)δ:12. 92(1H,s,OH-5) ,7. 89
(1H,s,H-2) ,7. 40(2H,d,J = 7. 6 Hz,H-2,6) ,
6. 91(2H,d,J = 7. 6 Hz,H-3,5) ,6. 68(1H,d,J =
10. 0 Hz,H-4″) ,6. 29(1H,s,H-6) ,5. 59(1H,d,J =
10. 0 Hz,H-3″) ,1. 47(6H,s,CH3-5″,6″) ;
13 C NMR
(CDCl3,100 MHz)δ:180. 9(C-4) ,162. 3(C-5) ,
159. 6(C-7) ,155. 8(C-4) ,152. 3(C-2) ,152. 2(C-
8a) ,130. 4(C-2,6) ,127. 5(C-3″) ,123. 6(C-3) ,
123. 1(C-1) ,115. 5(C-3,5) ,114. 6(C-4″) ,106. 0
(C-4a) ,101. 1(C-8) ,100. 4(C-6) ,78. 1(C-2″) ,
28. 2(C-5″,6″). It was identified as derrone by com-
parison of the physical and spectral data with the repor-
ted data[12].
Compound 7 Pale yellow oil C11 H10 O4,
1H NMR
(DMSO,400 MHz) ,δ:11. 81(1H,br s,OH-8) ,10. 07
(1H,s,-CHO) ,8. 05(1H,d,J = 8. 8 Hz,H-6) ,7. 07
(1H,d,J = 8. 8 Hz,H-7) ,4. 82(1H,m,H-3) ,3. 87
(1H,dd,J = 17. 6 Hz,2. 8 Hz,Ha-4) ,3. 06 (1H,
dd,J = 15. 2 Hz,12. 0 Hz,Hb-4) ,1. 46(3H,d,J = 6. 4
Hz,-CH3) ;
13C NMR(DMSO,100 MHz) ,δ:190. 7(-
CHO) ,168. 8(C-1) ,165. 1(C-8) ,144. 2(C-4a) ,
138. 6(C-6) ,124. 3(C-5) ,116. 1(C-7) ,108. 9(C-
8a) ,75. 2(C-3) ,29. 7(C-4) ,20. 2(-CH3). It was i-
dentified as(3R)-5-formylmellein by comparison of the
physical and spectral data with the reported data[13].
Compound 8 Yellow oil C10 H10 O4,
1H NMR
(CDCl3,400 MHz) ,δ:11. 0(1H,s,OH-7) ,7. 55
(1H,t,J = 8. 0 Hz,H-5) ,7. 02(2H,t,J = 8. 0 Hz,H-
4,H-6) ,4. 62(1H,m,H-3) ,4. 61(1H,m,H-1) ,
1. 53(3H,d,J = 5. 6 Hz,H-2) ;13C NMR(CDCl3,100
MHz) ,δ:168. 4(C-1) ,162. 0(C-7) ,141. 1(C-9) ,
136. 9(C-5) ,117. 9(C-6) ,116. 1(C-4) ,106. 6(C-
8) ,79. 9(C-1) ,69. 2(C-3) ,17. 9(C-2). It was i-
dentified as 3β-(1β-hydroxyethyl)-7-hydroxy-1-iso-
benzofuranone by comparison of the physical and spec-
tral data with the reported data[14].
Compound 9 White crystal C11 H12 O3,
1H NMR
(CDCl3,400 MHz) ,δ:7. 63(1H,d,J = 16. 0 Hz,H-
7) ,7. 42(2H,d,J = 8. 0 Hz,H-2,H-6) ,6. 84(2H,d,
626 Nat Prod Res Dev Vol. 25
J = 8. 0 Hz,H-3,H-5) ,6. 30(1H,d,J = 16. 0 Hz,H-
8) ,5. 50(1H,br s,OH-3) ,4. 25(2H,q,J = 7. 2 Hz,
H-1) ,1. 33(3H,t,J = 7. 2 Hz,H-2) ;13 C NMR
(CDCl3,100 MHz) ,δ:167. 5(C-9) ,157. 6(C-4) ,
144. 3(C-7) ,129. 9(C-2,C-6) ,127. 3(C-1) ,115. 8
(C-3,C-5) ,115. 7(C-8) ,60. 4(C-1) ,14. 3(C-2)
. It was identified as trans-p-hydroxycinnamic acid eth-
yl ester by comparison of the physical and spectral data
with the reported data[15].
Compound 10 White needles crystal;It was charac-
terized by comparing it with authentic sample on
TLC. It was identified as β-sitosterol[16].
Compound 11 White amorphous powder;It was
characterized by comparing it with authentic sample on
TLC. It was identified as β-daucosterol[17].
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