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Chemical constituents of rice (Oryza sativa) hulls and their herbicidal activity against duckweed (Lemna paucicostata Hegelm 381)
- Chung, IM;
- Ali, M;
- Ahmad, A;
- Lim, JD;
- Yu, CY;
- 외 1명
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48초록
Four new compounds, stigmastanol-3 beta-p-glyceroxydihydrocoumaroate (1), stigmastanol-3 beta-p-butanoxydihydrocoumaroate (2), lanast-7,9(11)-dien-3 alpha,15 alpha-diol-3 alpha-D-glucofuranoside (3) and 1-phenyl-2-hydroxy-3,7-dimethyl-11-aldehydic-tetradecane-2-beta-D-glucopyranoside (4), along with several known compounds were isolated from the methanol extract of hulls of Oryza sativa. The new structures were established by one- and two-dimensional NMR and in combination with IR, EI/MS, FAB/MS and HR-FAB/ MS. Compound (3) strongly inhibited the growth of duckweed (Lemna paucicostata Hegelm 381), whilst compounds (2) and (4) exhibited weak inhibition. Copyright (c) 2005 John Wiley & Sons, Ltd.
키워드
structure determination; stigmastanol-3 beta-p-glyceroxydihydrocoumaroate; stigmastanol-3 beta-p-butanoxydihydrocoumaroate; lanast-7,9(11)-dien-3 alpha,15 alpha-diol-3 alpha-D-glucofuranoside; 1-phenyl-2-hydroxy-3,7-dimethyl-11-aldehydic-tetradecane-2-beta-D-glueop yranoside; Oryza sativa L.; P-oaceae; IDENTIFICATION; PHYTOALEXINS; ANTIOXIDANTS; LEAVES
- 제목
- Chemical constituents of rice (Oryza sativa) hulls and their herbicidal activity against duckweed (Lemna paucicostata Hegelm 381)
- 저자
- Chung, IM; Ali, M; Ahmad, A; Lim, JD; Yu, CY; Kim, JS
- DOI
- 10.1002/pca.879
- 발행일
- 2006-01
- 유형
- Article
- 권
- 17
- 호
- 1
- 페이지
- 36 ~ 45