Rajput M Tariq

Publications (2)4.14 Total impact

• Source

  Available from: Bina S Siddiqui

  Article: Phytochemical studies on the seed extract of Piper nigrum Linn.

  Munawwer Rasheed, Farhana Afshan, Rajput M Tariq, Bina S Siddiqui, Tahsin Gulzar, Azhar Mahmood, Sabira Begum, Bushra Khan
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  ABSTRACT: The petroleum ether extract of dried ground seeds of Piper nigrum Linn. and some column fractions of this extract were subjected to GC and GC-MS analysis, resulting in the identification of fourteen compounds (1-14) by using NIST Mass spectral search program 1998 and the Kovat's retention indices. Ten of the compounds (1, 2, 4-12) are reported for the first time from this plant. All the fractions showed insecticidal activity against the fourth instar larvae of Aedes aegypti and against the fourth instar larvae of Anopheles stephensi Liston, determined by the WHO method.
  Natural Product Research 11/2005; 19(7):703-12. · 1.01 Impact Factor
• Article: Two new triterpenoids from Azadirachta indica and their insecticidal activity.

  Bina S Siddiqui, Farhana Afshan, Shaheen Faizi, Syed Naeem-Ul-Hassan Naqvi, Rajput M Tariq
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  ABSTRACT: Two new triterpenoids, 22,23-dihydronimocinol (1) and desfurano-6alpha-hydroxyazadiradione (2), were isolated from a methanolic extract of the fresh leaves of Azadirachta indica (neem) along with a known meliacin, 7alpha-senecioyl-(7-deacetyl)-23-O-methylnimocinolide. The structures of 1 and 2 were elucidated through spectral and chemical studies. Compounds 1 and 2 showed mortality for fourth instar larvae of the mosquito (Anopheles stephensi), with LC(50) values of 60 and 43 ppm, respectively.
  Journal of Natural Products 09/2002; 65(8):1216-8. · 3.13 Impact Factor