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 in | 목재공학 Vol. 37; no. 1; pp. 114 - 120 |
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Main Authors | , , , , , , , |
Format | Journal Article |
Language | Korean |
Published |
한국목재공학회
01.01.2009
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Subjects | |
Online Access | Get full text |
ISSN | 1017-0715 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. |
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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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