Constituents of high altitude Himalayan herbs. part XX. A C-19 diterpenoid alkaloid from Aconitum balfourii

1364-1366A C-19 Diterpenoid alkaloid, 14-benzoylpseudaconine 1 has been isolated from the aerial parts of Aconitum balfourii and identified by MS, ¹H , ¹³C NMR (SFORD and DEPT) as well as by chemical analysis

Constituents of high altitude Himalayan herbs :<span style="font-size:14.0pt;line-height:115%;font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";color:#1E1E1E;mso-ansi-language:EN-IN; mso-fareast-language:EN-IN;mso-bidi-language:HI;mso-bidi-font-weight:bold" lang="EN-IN"> <span style="font-size:14.0pt;line-height:115%;font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";color:#0E0E0E;mso-ansi-language:EN-IN; mso-fareast-language:EN-IN;mso-bidi-language:HI;mso-bidi-font-weight:bold" lang="EN-IN">Part XI-Xylitol and lignan from <i>Bupleurum tenue</i></span></span>

448-450A <span style="font-size:14.0pt;line-height:115%; font-family:HiddenHorzOCR;mso-hansi-font-family:" times="" new="" roman";mso-bidi-font-family:="" hiddenhorzocr;color:#0e0e0e;mso-ansi-language:en-in;mso-fareast-language:en-in;="" mso-bidi-language:hi"="" lang="EN-IN">new <span style="font-size:14.0pt; line-height:115%;font-family:" times="" new="" roman";mso-fareast-font-family:"times="" roman";="" color:#0e0e0e;mso-ansi-language:en-in;mso-fareast-language:en-in;mso-bidi-language:="" hi"="" lang="EN-IN">lignan β-(trans-3',4'-methylenedioxybenzylidene)-α-(3,4-dimethoxybenzyl)-γ-butyrolactone <span style="font-size:14.0pt;line-height:115%;font-family: " times="" new="" roman";mso-fareast-font-family:"times="" roman";color:#0e0e0e;="" mso-ansi-language:en-in;mso-fareast-language:en-in;mso-bidi-language:hi"="" lang="EN-IN">2 along with α-(trans-3', 4' methylenedioxybenzylidene)-β-(3,4-dimethoxybenzyl)-γ-butyrolactone, psoralin and xylitol have been isolated from the non polar and polar fractions of the alcoholic extract of Bupleurum tenue and identified by UV,IR 1<span style="font-size:14.0pt;line-height:115%;font-family:Arial; mso-fareast-font-family:" times="" new="" roman";color:#363636;mso-ansi-language:en-in;="" mso-fareast-language:en-in;mso-bidi-language:hi"="" lang="EN-IN">HNMR 13CNMR, DEPT and mass spectral methods.</span

Constituents of high altitude Himalayan herbs: Part VIII - A new lignan from Bupleurum lanceolatum

1319-132

The structure of tatsinine, a novel C<SUB>19</SUB>- diterpenoid alkaloid from Delphinium tatsienense franch

A novel C19-diterpenoid alkaloid designated as tatsinine has been isolated from the roots Delphinium tatsienense of and its structure (3) has been derived from 1H NMR and 13C NMR spectroscopic evidence

Norditerpenoid alkaloids from the aerial parts of Aconitum balfourii Stapf

From the aerial parts of Aconitum balfourii Stapf nine norditerpenoid alkaloids: condelphine (1), bullatine C (2), neoline (3), isotalatizi- dine (4), 1-O-methyldelphisine (5), pseudaconitine (6), yunaconitine (7), bikhaconitine (8), and indaconitine (9), were isolated. The iden- tity of these alkaloids was determined by comparison of mp, tlc and ir spectra with those of authentic samples and the carbon-13 nmr spectra of 2, 5, 6, 7 and 8 with the published chemical shifts. Detailed nmr spectral studies (1H, 13C, 1H homonuclear COSY, HETCOR, and selective INEPT) carried out on (1), (3), (4) and (9) have provided accurate chemical shift assignments for these alkaloids

Alkaloids of Aconitum balfourii Stapf

Three new norditerpenoid almkaloids, 8-O-methylveratroylpseudaconine (9), veratroylbikhaconine (10), and balfourine (1), have been isolated from Aconitum balfiourii, together with eight known alkaloids, pseudaconitine, veratroylpseudaconine, indaconitrine, ludaconitine, 8-deacetylyunaconitine, bikhaconitine, neoline, and chasmanine. The new structures were derived from physical and spectroscopic data and chemical correlations with alkaloids of established structures

Constituents of high altitude Himalayan herb <i>Angelica glauca</i>

2452-2455(Z)-ligustilide, (Z)-butylidine phthalide, methyl octadecadinoate, caryophyllene and caryophyllene oxide have been isolated from the n-hexane extracts of root of Angelica glau ca, collected from the high altitude region of Kumaun Himalayas in Uttaranchal

1, 5-Dihydroxy-3, 8-dimethoxyxanthone from <i>Swertia cuneata</i>^†

953-955A new tetraoxygenatedxanthone 1, 5-dihydroxy-3, 8-dimethoxyxanthone 1 has been isolated from Swertia cuneata (Gentianaceae) and identified by means of chemical and UV, 1H NMR, 13C NMR and mass spectral data

Antimicrobial activity of different extracts of roots of <i>Rumex nepalensis</i> Spreng.

65-69Six crude extracts from the roots of Rumex nepalensis Spreng. were evaluated for in vitro antimicrobial activity against two Gram positive (Staphylococcus aureus, Streptococcus mutans) and two Gram negative bacteria (Escherichia coli, Pseudomonas aeruginosa) and one fungus, Candida albicans. The agar plate well diffusion method was used for different samples. Benzene and ethyl acetate extracts demonstrated significant inhibitory effect against majority of microorganisms under test