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Abstract�� OBJECT��E To study the chemical constituents of Ginkgo biloba kernel. METHODS The chemical constituents were isolated by silica gel chromatography��and their structures were elucidated by physical-chemical and spectroscopic data. RESULTS Nineteen compounds were isolated and their structures were identified as hexacosanoic acid(��)��palmitic acid(��)�� ginnol(��)��β-sitosterol(��)��2��3-dihydroxypropyl hexadecoate(��)�� ursolic acid(��)�� sciadopitysin(��)�� ginkgetin(��)�� isoginkgetin(��)�� daucosterol(��)�� ginkdolide A(��)�� ginkdolide B(��)�� ginkdolide C(��)�� uracil(��)�� coniferin(��)��liquirtin(��)�� adenosine(��)�� D-glucose(��) and sucrose(��). CONCLUSION Compounds ��-�� are obtained from this plant for the first time��compounds ��-��-�� and �� are obtained from Ginkgo biloba kernel for the first time.

Keywords�� Ginkgo biloba kernel, chemical constituents, ursolic acid, coniferin, liquirtin, adenosine

�ո��: 2012-09-12;

ͨѶ�� �ܹ��У�˶ʿ�о�� о��ҩ��ʻ��о� ^*ͨѶ��ƽ��У��ʿ��ڣ��ʿ��ʦ �о��ҩ��Դ��ѧ�뷽ҩЧӦ��ʻ��о� Tel��025��85811916 E-mailyupingtang@njutcm.edu.cn Email: yupingtang@njutcm.edu.cn

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�ܹ��, Ҧ��, ��ƽ�� .�׹��ʻ�ѧ�ɷ��о�[J] �й�ҩѧ��־, 2012,V47(17): 1362-1365

ZHOU Gui-Sheng-, YAO Xin-, TANG Yu-Ping-^* etc .Study on Chemical Constituents of Ginkgo biloba Kernel[J] Chinese Pharmaceutical Journal, 2012,V47(17): 1362-1365

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