Latest papers

An asymmetric synthesis of both enantiomers of the indole alkaloid deplancheine.

Antipyretic activity of Alstonia macrophylla Wall ex A. DC: an ethnomedicine of Andaman Islands.

The effect of seasonal variation on the antineoplastic activity of Alstonia scholaris R. Br. in HeLa cells.

Modification of benzo(a)pyrene-(BaP)-induced forestomach carcinogenesis in mice by means od extract of the bark of Astonia scholaris (ASE).

CNS activity of Alstonia macrophylla leaf extracts: an ethnomedicine of Onge of Bay Islands.

New indole alkaloids from the bark of Alstonia scholaris.

The evaluation of the acute toxicity and long term safety of hydroalcoholic extract of Sapthaparna (Alstonia scholaris) in mice and rats

Venalstonine and dioxokopsan derivatives from Kopsia fruticosa.

New indole alkaloids from Alstonia macrophylla.

Alkaloids from Alstonia angustifolia

Stereocontrolled total synthesis of (-)-vincamajinine and (-)-11-methoxy-17-epivincamajine.

Effect of Alstonia scholaris in enhancing the anticancer activity of berberine in the Ehrlich ascites carcinoma-bearing mice.

Treatment with Alstonia scholaris enhances radiosensitivity in vitro and in vivo.

Induction of developmental toxicity in mice treated with Alstonia scholaris (Sapthaparna) In utero.

Effect of Sapthaparna (Alstonia scholaris Linn) in modulating the benzo(a)pyrene-induced forestomach carcinogenesis in mice.

The enantiospecific, stereospecific total synthesis of the ring-A oxygenated sarpagine indole alkaloids (+)-majvinine, (+)-10-methoxyaffinisine, and (+)-N(a)-methylsarpagine, as well as the total synthesis of the alstonia bisindole alkaloid macralstonidine.

Modulation of antineoplastic activity of cyclophosphamide by Alstonia scholaris in the Ehrlich ascites carcinoma-bearing mice.

Enantiospecific, stereospecific total synthesis of the oxindole alkaloid alstonisine.

Evaluation of anti-inflammatory activity of Alstonia macrophylla Wall ex A. DC. leaf extract.

Regiospecific, enantiospecific total synthesis of the alkoxy-substituted indole bases, 16-epi-N(a)-methylgardneral, 11-methoxyaffinisine, and 11-methoxymacroline as well as the indole alkaloids alstophylline and macralstonine.