Pakistan Research Repository

PHYTOCHEMICAL STUDIES ON TAXUS WALLICHIANA ZUCC., PODOPHYLLUM EMODI VAR. HEXANDRUM AND RELATED MEDICINAL PLANTS

Ashraf, Muhammad (1999) PHYTOCHEMICAL STUDIES ON TAXUS WALLICHIANA ZUCC., PODOPHYLLUM EMODI VAR. HEXANDRUM AND RELATED MEDICINAL PLANTS. PhD thesis, University of Karachi, Karachi.

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Abstract

The present doctoral work deals with the isolation of chemical constituents from two medicinally important plants namely, Taxus wallichiana Zucc. And Podophyllum emodi var. hexandrum collected from the northern areas of Pakistan. Phytochemical investigations on the aerial parts of Taxus wallichiana Zucc. Led to the isolation of three new metabolites, 5a-hydroxy-1B, 7B, 9a, 10B, 13a-pentaacetoxy-4(20)-taxa-11(12)-diene (142), 15-acetyl-11)15-1)-abeo-taxane (143), and 5a, 7B, 9a, 10B-tetrahydroxy-1(15-11)-abeo-taxa-4(20)-12-diene(144)along with two known taxiods, 1B-hydroxy-7,9-deacetylbaccatin 1 (145) and 5-decinnamate taxagifine (146) reported earlier from T. conadesis.

Item Type:Thesis (PhD)
Uncontrolled Keywords:taxus wallichiana zucc., podophyllum emodi var. hexandrum, medicinal plants, podophyllum emodivar hexandrum (royle), lignans,
Subjects:Physical Sciences (f) > Chemistry(f2)
ID Code:910
Deposited By:Mr. Muhammad Asif
Deposited On:08 Nov 2006
Last Modified:04 Oct 2007 21:03

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