현사시나무 수피에서 분리한 Grandidentatin Isomer의 입체구조결정

The bark of Populus alba ${\times}$ glandulosa was collected, air-dried and extracted with 70% aqueous acetone. Then it was successively partitioned with n-hexane, $CH_2Cl_2$, EtOAc and $H_2O$. Repeated Sephadex LH-20 column chromatography and preparative TLC on the EtOAc soluble fraction gave a gra...

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Published in목재공학 Vol. 37; no. 1; pp. 114 - 120
Main Authors 권동주, Dong Joo Kwon, 김현석, Hyun Seok Kim, 이필호, Phil Ho Lee, 배영수, Young Soo Bae
Format Journal Article
LanguageKorean
Published 한국목재공학회 01.01.2009
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ISSN1017-0715
2233-7180

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Abstract The bark of Populus alba ${\times}$ glandulosa was collected, air-dried and extracted with 70% aqueous acetone. Then it was successively partitioned with n-hexane, $CH_2Cl_2$, EtOAc and $H_2O$. Repeated Sephadex LH-20 column chromatography and preparative TLC on the EtOAc soluble fraction gave a grandidentatin isomer. The structure was elucidated as grandidentatin A (cis-2-hydroxycyclohexyl 6-O-p-coumaroyl-${\beta}$-D-glucopyranoside) on the basis of spectroscopic evidences such as $^1H$-NMR, $^{13}C$-NMR, 2D-NMR and MALDI TOF-MS spectrum followed by acid hydrolysis. Grandidentatin A was identified here for the first time in Populus alba ${\times}$ glandulosa bark, and to the bset of our knowledge it has not been reported in any other literature. 현사시나무 수피를 채취하여 기건 시킨 후 70% 아세톤 용액으로 추출하고 농축한 후 헥산, 디클로로메탄, 에틸아세테이트 및 수용성으로 순차 추출하여 동결건조하였다. 에틸아세테이트 분획에 대하여 Sephadex LH-20 컬럼크로마토그래피와 분취 TLC를 반복적으로 수행하여 화합물을 분리하였다. 화합물의 구조는 산 가수분해와 $^1H$-NMR, $^{13}C$-NMR, 2D-NMR 및 MALDI TOF-MS 스펙트럼을 분석하여, grandidentatin A(cis-2-hydroxycyclohexyl 6-O-p-coumaroyl-${\beta}$-D-glucopyranoside)로 동정하였다. Grandidentatin A는 현사시나무 수피에서 처음 분리되었으며, 문헌에 보고되지 않은 신규화합물이다.
AbstractList The bark of Populus alba ${\times}$ glandulosa was collected, air-dried and extracted with 70% aqueous acetone. Then it was successively partitioned with n-hexane, $CH_2Cl_2$, EtOAc and $H_2O$. Repeated Sephadex LH-20 column chromatography and preparative TLC on the EtOAc soluble fraction gave a grandidentatin isomer. The structure was elucidated as grandidentatin A (cis-2-hydroxycyclohexyl 6-O-p-coumaroyl-${\beta}$-D-glucopyranoside) on the basis of spectroscopic evidences such as $^1H$-NMR, $^{13}C$-NMR, 2D-NMR and MALDI TOF-MS spectrum followed by acid hydrolysis. Grandidentatin A was identified here for the first time in Populus alba ${\times}$ glandulosa bark, and to the bset of our knowledge it has not been reported in any other literature. 현사시나무 수피를 채취하여 기건 시킨 후 70% 아세톤 용액으로 추출하고 농축한 후 헥산, 디클로로메탄, 에틸아세테이트 및 수용성으로 순차 추출하여 동결건조하였다. 에틸아세테이트 분획에 대하여 Sephadex LH-20 컬럼크로마토그래피와 분취 TLC를 반복적으로 수행하여 화합물을 분리하였다. 화합물의 구조는 산 가수분해와 $^1H$-NMR, $^{13}C$-NMR, 2D-NMR 및 MALDI TOF-MS 스펙트럼을 분석하여, grandidentatin A(cis-2-hydroxycyclohexyl 6-O-p-coumaroyl-${\beta}$-D-glucopyranoside)로 동정하였다. Grandidentatin A는 현사시나무 수피에서 처음 분리되었으며, 문헌에 보고되지 않은 신규화합물이다.
현사시나무 수피를 채취하여 기건 시킨 후 70% 아세톤 용액으로 추출하고 농축한 후 헥산, 디클로로메탄, 에틸아세테이트 및 수용성으로 순차 추출하여 동결건조하였다. 에틸아세테이트 분획에 대하여 Sephadex LH-20 컬럼크로마토그래피와 분취 TLC를 반복적으로 수행하여 화합물을 분리하였다. 화합물의 구조는 산 가수분해와 1H-NMR, 13C-NMR, 2D-NMR 및 MALDI TOF-MS 스펙트럼을 분석하여, grandidentatin A (cis-2-hydroxycyclohexyl 6-O-p-coumaroyl-β-D-glucopyranoside)로 동정하였다. Grandidentatin A는 현사시나무 수피에서 처음 분리되었으며, 문헌에 보고되지 않은 신규화합물이다. The bark of Populus alba × glandulosa was collected, air-dried and extracted with 70% aqueous acetone. Then it was successively partitioned with n-hexane, CH2Cl2, EtOAc and H2O. Repeated Sephadex LH-20 column chromatography and preparative TLC on the EtOAc soluble fraction gave a grandidentatin isomer. The structure was elucidated as grandidentatin A (cis-2-hydroxycyclohexyl 6-O-p-coumaroyl-β-D-glucopyranoside) on the basis of spectroscopic evidences such as 1H-NMR, 13C-NMR, 2D-NMR and MALDI TOF-MS spectrum followed by acid hydrolysis. Grandidentatin A was identified here for the first time in Populus alba × glandulosa bark, and to the bset of our knowledge it has not been reported in any other literature. KCI Citation Count: 0
Author Young Soo Bae
김현석
Dong Joo Kwon
Hyun Seok Kim
Phil Ho Lee
배영수
권동주
이필호
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DocumentTitleAlternate 현사시나무 수피에서 분리한 Grandidentatin Isomer의 입체구조결정
Determination of Stereochemical Structure of a Grandidentatin Isomer from Populus alba × glandulosa Bark
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Keywords grandidentatin isomer
stereochemistry
Populus alba ${\times}$ glandulosa
NMR
acid hydrolysis
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Snippet The bark of Populus alba ${\times}$ glandulosa was collected, air-dried and extracted with 70% aqueous acetone. Then it was successively partitioned with...
현사시나무 수피를 채취하여 기건 시킨 후 70% 아세톤 용액으로 추출하고 농축한 후 헥산, 디클로로메탄, 에틸아세테이트 및 수용성으로 순차 추출하여 동결건조하였다. 에틸아세테이트 분획에 대하여 Sephadex LH-20 컬럼크로마토그래피와 분취 TLC를 반복적으로 수행하여 화합물을...
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StartPage 114
SubjectTerms acid hydrolysis
grandidentatin isomer
NMR
Populus alba × glandulosa
stereochemistry
임학
Title 현사시나무 수피에서 분리한 Grandidentatin Isomer의 입체구조결정
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Volume 37
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