NOPR Collection:

Components from whole plant of Phyllanthus amarus Linn

2013-10-08T16:41:26Z

Title: Components from whole plant of Phyllanthus amarus Linn Authors: Ahmad, Bahar; Alam, Tanveer Abstract: The whole plant of Phyllanthus amarus Linn. has afforded new secosterols named as amarosterol-A characterized as 13,14-seco-stigma 5(6), 14(15)-diene-3-α-ol 1, and amarosterol-B characterized as 13 ,14-seco-stigma 9(11), 14(15)-diene-3-α-ol 2. Their structures have been elucidated on the basis of spectral and chemical studies. Page(s): 1786-1790

Terpenoid and lipid constituents from Artemisia annua^†

2013-10-09T16:39:54Z

Title: Terpenoid and lipid constituents from Artemisia annua^† Authors: Tewari, Amit; Bhakuni, Rajendra Singh Abstract: Two new compounds, a bisnor cadinane 3α, 5β-dihydroxy-4α,11-epoxybisnor cadinane 1 and the other lipid constituent methyl-11, 12,15-trihydroxy-13(14)-octadecanoate 3 have been isolated from the leaves of Artemisia annua. Their structures have been established on the basis of their spectral and chemical studies. Page(s): 1782-1785

Synthesis and antibacterial activity of amoenylin, a metabolite of Dendrobium amoenum^†

2013-10-10T16:40:10Z

Title: Synthesis and antibacterial activity of amoenylin, a metabolite of Dendrobium amoenum^† Authors: Venkateswarlu, Somepalli; Ramachandra, Marellapudi S.; Subbaraju, Gottumukkala V Abstract: Amoenylin 6, a dihydrostilbene from Dendrobium amoenum has been synthesised from sy ringaldehyde 1, in three steps with an overall yield of 40%. The spectral data of synthetic 6 are in good agreement with those of natural product. Amoenylin 6 shows weak antibacterial activity. Page(s): 1779-1781

A rapid and efficient method for acetylation of phenols with acetic anhydride catalysed by TiO₂/SO₄^2- solid superacid

2013-10-10T16:38:13Z

Title: A rapid and efficient method for acetylation of phenols with acetic anhydride catalysed by TiO₂/SO₄^2- solid superacid Authors: Ma, Yan-Ran; Jin, Tong-Shou; Wang, Zhen-Hua; Li, Tong-Shuang Abstract: A rapid and efficient method for acetylation of phenols with acetic anhydride in the presence of TiO₂/SO₄^2- solid superacid at room or at reflux temperature in excellent yield is described. Page(s): 1777-1778

NOPR Collection:

Components from whole plant of Phyllanthus amarus Linn

Terpenoid and lipid constituents from Artemisia annua†

Synthesis and antibacterial activity of amoenylin, a metabolite of Dendrobium amoenum†

A rapid and efficient method for acetylation of phenols with acetic anhydride catalysed by TiO2/SO42- solid superacid

Terpenoid and lipid constituents from Artemisia annua^†

Synthesis and antibacterial activity of amoenylin, a metabolite of Dendrobium amoenum^†

A rapid and efficient method for acetylation of phenols with acetic anhydride catalysed by TiO₂/SO₄^2- solid superacid