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1

Eight New Diterpenoids from Euphorbia decipiens

Muhammad Zahid, Syed Raziullah Husani, Muhammad Abbas, Yuanjiang Pan, Amir Reza Jassbi, Muhammad Asim, Masood Parvez, Wolfgang Voelter, Viqar Uddin Ahmad

Journal:

Helvetica Chimica Acta

Year:

2001

Language:

english

File:

PDF, 153 KB

english, 2001

2

Evaluation of antimicrobial potential of endophytic fungi associated with healthy plants and characterization of compounds produced by endophytic Cephalosporium and Fusarium solani

Farhat, Hafiza, Urooj, Faizah, Tariq, Amna, Sultana, Viqar, Ansari, Madeeha, Ahmad, Viqar Uddin, Ehteshamul-Haque, Syed

Journal:

Biocatalysis and Agricultural Biotechnology

Year:

2019

File:

PDF, 714 KB

2019

3

Stereoselective Synthesis of Thiochroman-4-ones by Ring Transformation of Chiral 5-Ylidene-1,3-dioxan-4-ones with 2-Bromothiophenol via Bromo−Lithium Exchange

Akbar Ali, Viqar Uddin Ahmad, Jürgen Liebscher

Journal:

European Journal of Organic Chemistry

Year:

2001

Language:

english

File:

PDF, 337 KB

english, 2001

4

Capparisinine, a New Alkaloid from Capparis decidua

Viqar Uddin Ahmad, Shoib Arif, Aziz-Ur-Rahman Amber, Kaniz Fizza

Journal:

European Journal of Organic Chemistry

Year:

1987

Language:

english

File:

PDF, 176 KB

english, 1987

5

A saponin from the stem bark of Guaiacum officinale

Viqar Uddin Ahmad, Nasreen Bano, Bano Shaheen

Journal:

Year:

1986

Language:

english

File:

PDF, 179 KB

english, 1986

6

A terpenoid diketone from the leaves of Prosopis juliflora

Viqar Uddin Ahmad, Azra Sultana

Journal:

Year:

1989

Language:

english

File:

PDF, 218 KB

english, 1989

7

Symphytoxide A, A triterpenoid saponin from the roots of Symphytum officinale

Viqar Uddin Ahmad, Mushtaq Noorwala, Faryal Vali Mohammad, Bilge Sener, Anwar-ul-Hassan Gilan, Khalid Aftab

Journal:

Year:

1993

Language:

english

File:

PDF, 453 KB

english, 1993

8

A bidesmosidic hederagenin hexasaccharide from the roots of Symphytum officinale

Faryal Vali Mohammad, Mushtaq Noorwala, Viqar Uddin Ahmad, Bilge Sener

Journal:

Year:

1995

Language:

english

File:

PDF, 488 KB

english, 1995

9

A bidesmosidic triterpene glycoside from the roots of Symphytum officinale

Mushtaq Noorwala, Faryal Vali Mohammad, Viqar Uddin Ahmad, Bilge Sener

Journal:

Year:

1994

Language:

english

File:

PDF, 511 KB

english, 1994

10

l(—)-4-Hydroxypipecolic acid from peganum harmala

Viqar Uddin Ahmad, Mohammad Ataullah Khan

Journal:

Year:

1971

Language:

english

File:

PDF, 75 KB

english, 1971

11

Phenolic glycosides from Symplocos racemosa: natural inhibitors of phosphodiesterase I

Viqar Uddin Ahmad, Muhammad Athar Abbasi, Hidayat Hussain, Muhammad Nadeem Akhtar, Umar Farooq, Naheed Fatima, M.Iqbal Choudhary

Journal:

Year:

2003

Language:

english

File:

PDF, 152 KB

english, 2003

12

Epimers from the leaves of Calophyllum inophyllum

Muhammad Shaiq Ali, Shaukat Mahmud, Shaista Perveen, Viqar Uddin Ahmad, Ghazala Hafeez Rizwani

Journal:

Year:

1999

Language:

english

File:

PDF, 142 KB

english, 1999

13

Isolation of two new saponins, guaianin D and E from the bark of Guaiacum Officinale.

Viqar Uddin Ahmad, Nasreen Bano, Iqbal Fatima, Shaheen Bano

Journal:

Year:

1988

Language:

english

File:

PDF, 361 KB

english, 1988

14

The isolation, purification and biological activity of a novel antibacterial compound produced by Pseudomonas stutzeri

Bushra Uzair, Nuzhat Ahmed, Viqar Uddin Ahmad, Faryal Vali Mohammad, David H. Edwards

Journal:

FEMS Microbiology Letters

Year:

2008

Language:

english

File:

PDF, 423 KB

english, 2008

15

Chemical constituents of Scutellaria linearis

Hidayat Hussain, Viqar Uddin Ahmad, Saeed Anwar, Ghulam Abbas Miana, Karsten Krohn

Journal:

Biochemical Systematics and Ecology

Year:

2008

Language:

english

File:

PDF, 137 KB

english, 2008

16

Antinociceptive diterpene from Euphorbia decipiens

Viqar Uddin Ahmad, Hidayat Hussain, Ishfaq A. Bukhari, Javid Hussain, Amir Reza Jassbi, Ahsana Dar

Journal:

Year:

2005

Language:

english

File:

PDF, 62 KB

english, 2005

17

Separation and identification of a new saponin from the flowers of Guaiacum officinale L.

Saba, Nikhat, Ahmad, Viqar Uddin, Ali, Zulfiqar, Khan, Khalid Mohammed

Journal:

Natural Product Research

Year:

2010

Language:

english

File:

PDF, 188 KB

english, 2010

18

Isolation and Structure Elucidation of Saponins from the Fruit of Guaiacum officinale

Ahmad, Viqar Uddin, Uddin, Shafi, Bano, Shaheen

Journal:

Journal of Natural Products

Year:

1990

Language:

english

File:

PDF, 632 KB

english, 1990

19

Spectroscopic Data of Steroid Glycosides: Stigmastanes, Furostanes, Spirtostanes || Lilium Candidum Saponin 6

Ahmad, Viqar Uddin, Basha, Anwer

Year:

2006

File:

PDF, 68 KB

2006

20

Spectroscopic Data of Steroid Glycosides: Cholestanes, Ergostanes, Withanolides, Stigmastane || Stigmasterol 3-O-β-D-Glucopyranoside

Ahmad, Viqar Uddin, Basha, Anwer

Year:

2007

File:

PDF, 63 KB

2007

21

Guaianin, a New Saponin from Guaiacum offcinale

Ahmad, Viqar Uddin, Bano, Nasreen, Bano, Shaheen, Fatima, Ayjaz, Kenne, Lenart

Journal:

Journal of Natural Products

Year:

1986

Language:

english

File:

PDF, 229 KB

english, 1986

22

Urease inhibitory activity of ursane type sulfated saponins from the aerial parts of Zygophyllum fabago Linn

Khan, Saleha Suleman, Khan, Ajmal, Khan, Afsar, Wadood, Abdul, Farooq, Umar, Ahmed, Amir, Zahoor, Aqib, Ahmad, Viqar Uddin, Sener, Bilge, Erdemoglu, Nurgun

Journal:

Year:

2014

Language:

english

File:

PDF, 558 KB

english, 2014

23

Saponins from Zygophyllum propinquum

Ahmad, Viqar Uddin, Ghazala, , Uddin, Shafi, Bano, Shaheen

Journal:

Journal of Natural Products

Year:

1990

Language:

english

File:

PDF, 373 KB

english, 1990

24

A New Triterpene Glycoside from the Roots of Symphytum officinale

Ahmad, Viqar Uddin, Noorwala, Mushtaq, Mohammad, Faryal Vali, Sener, Bilge

Journal:

Journal of Natural Products

Year:

1993

Language:

english

File:

PDF, 410 KB

english, 1993

25

Diterpene Fatty Acid Ester from Leucas nutans

Hasan, Mashooda, Burdi, Dadu Khan, Ahmad, Viqar Uddin

Journal:

Journal of Natural Products

Year:

1991

Language:

english

File:

PDF, 201 KB

english, 1991

26

Officigenin, a New Sapogenin of Guaiacum officinale

Ahmad, Viqar Uddin, Bano, Nasreen, Bano, Shaheen

Journal:

Journal of Natural Products

Year:

1984

Language:

english

File:

PDF, 418 KB

english, 1984

27

A New Prosapogenin from Guaiacum officinale

Ahmad, Viqar Uddin, Bano, Nasreen, Bano, Shaheen, Smith, David L., Yazdanparast, Razieh

Journal:

Journal of Natural Products

Year:

1985

Language:

english

File:

PDF, 135 KB

english, 1985

28

New Diterpenoids from Euphorbia teheranica

Ahmad, Viqar Uddin, Jassbi, Amir Reza

Journal:

Journal of Natural Products

Year:

1999

Language:

english

File:

PDF, 41 KB

english, 1999

29

Two new diterpene polyesters from Euphorbia decipiens

Ahmad, Viqar Uddin, Hussain, Javid, Hussain, Hidayat, Farmanullah, Umar Farooq, Lodhi, M. Arif, Choudhary, M. Iqbal

Journal:

Natural Product Research

Year:

2005

Language:

english

File:

PDF, 134 KB

english, 2005

30

Triterpenoid saponin from the bark of Guaiacum Officinale L.

Ahmad, Viqar Uddin, Saba, Nikhat, Khan, Khalid Mohammed

Journal:

Natural Product Research

Year:

2004

Language:

english

File:

PDF, 124 KB

english, 2004

31

Negative ion fab mass spectroscopy of some Ribose Alkylated 5′-ump derivatives

Azhar*, Kaniz Fizza, Qudrat-E-Khuda, M., Khan, Khursheed Alam, Ahmad, Viqar Uddin

Journal:

Natural Product Research

Year:

2004

Language:

english

File:

PDF, 98 KB

english, 2004

32

A New Triterpenoidal Saponin from the Bark of Guaiacum officinale L.

Ahmad, Viqar Uddin, Saba, Nikhat, Ali, Zulfiqar, Zahid, Muhammad, Alam, Naseer

Journal:

Zeitschrift für Naturforschung B

Year:

2000

Language:

english

File:

PDF, 3.48 MB

english, 2000

33

Two New Saponins from Zygophyllum atriplicoides

Ahmad, Viqar Uddin, Iqbal, Shazia, Kousar, Farzana, Bader, Sadia, Arshad, Saima, Tareen, Rasool Bakhsh

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

2005

Language:

english

File:

PDF, 122 KB

english, 2005

34

Chemical composition, antioxidant and antimicrobial potential of essential oils from different parts of Daphne mucronata Royle

Ashraf, Iqra, Zubair, Muhammad, Rizwan, Komal, Rasool, Nasir, Jamil, Muhammad, Khan, Shakeel Ahmad, Tareen, Rasool Bakhsh, Ahmad, Viqar Uddin, Mahmood, Abid, Riaz, Muhammad, Zia-Ul-Haq, M., Jaafar, Ha

Journal:

Chemistry Central Journal

Year:

2018

Language:

english

File:

PDF, 1.27 MB

english, 2018

35

Chemical Analysis and Calcium Channel Blocking Activity of the Essential Oil of Perovskia abrotanoides

Shah, Abdul Jabbar, Rasheed, Munawwer, Jabeen, Qaiser, Ahmed, Amir, Tareen, Rasool Bakhsh, Gilani, Anwarul Hassan, Nadir, Muhammad, Ahmad, Viqar Uddin

Journal:

Natural Product Communications

Year:

2013

Language:

english

File:

PDF, 259 KB

english, 2013

36

Chemical Analysis and Calcium Channel Blocking Activity of the Essential Oil of Perovskia abrotanoides

Shah, Abdul Jabbar, Rasheed, Munawwer, Jabeen, Qaiser, Ahmed, Amir, Tareen, Rasool Bakhsh, Gilani, Anwarul Hassan, Nadir, Muhammad, Ahmad, Viqar Uddin

Journal:

Natural Product Communications

Year:

2013

File:

PDF, 259 KB

2013

37

Constituents of the essential oil of Perovskia atriplicifolia Benth.

Amir Reza Jassbi, Viqar Uddin Ahmad, Rasool Bakhsh Tareen

Journal:

Flavour and Fragrance Journal

Year:

1999

Language:

english

File:

PDF, 78 KB

english, 1999

38

Cytotoxic activity of marine macro-algae on Artemia salina (Brine shrimp)

Jehan Ara, Viqar Sultana, Syed Ehteshamul-Haque, Rashida Qasim, Dr Viqar Uddin Ahmad

Journal:

Phytotherapy Research

Year:

1999

Language:

english

File:

PDF, 46 KB

english, 1999

39

Effect of the crude extract of Cestrum parqui on carrageenin-induced rat paw oedema and aggregation of human blood platelets

Darakhshanda Shehnaz, Faiza Hamid, Fehmida T. Baqai, Viqar Uddin Ahmad

Journal:

Phytotherapy Research

Year:

1999

Language:

english

File:

PDF, 51 KB

english, 1999

40

Three New Diterpenoids from Euphorbia cheiradenia

Muhammad Abbas, Amir Reza Jassbi, Muhammad Zahid, Zulfiqar Ali, Naseer Alam, Farzana Akhtar, M. Iqbal Choudhary, Viqar Uddin Ahmad

Journal:

Helvetica Chimica Acta

Year:

2000

Language:

english

File:

PDF, 71 KB

english, 2000

41

Two New Spirostanol Glycosides from Cestrum parqui

Fehmida Tasnim Baqai, Akbar Ali, Viqar Uddin Ahmad

Journal:

Helvetica Chimica Acta

Year:

2001

Language:

english

File:

PDF, 100 KB

english, 2001

42

New Cycloartane and Flavonol Glycosides from Corchorus depressus

Muhammad Zahid, Akbar Ali, Omar Ishurd, Amir Ahmed, Zulfiqar Ali, Viqar Uddin Ahmad, Yuanjiang Pan

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 105 KB

english, 2002

43

Isolation of Four New Pterocarpans from Zygophyllum eurypterum (Syn. Z. atriplicoides) with Enzyme-Inhibition Properties

Viqar Uddin Ahmad, Shazia Iqbal, Sarfraz Ahmad Nawaz, M. Iqbal Choudhary, Umar Farooq, Syed Tariq Ali, Amir Ahmad, Sadia Bader, Farzana Kousar, Saima Arshad, Rasool Bakhsh Tareen

Journal:

Chemistry & Biodiversity

Year:

2006

Language:

english

File:

PDF, 90 KB

english, 2006

44

Reaktionen an Indolderivaten, XXXIV. Stereoselektive Cyclisierungen in der Tetrahydro-β-carbolin-Reihe

Viqar Uddin Ahmad, Karl-Heinz Feuerherd, Ekkehard Winterfeldt

Journal:

European Journal of Inorganic Chemistry

Year:

1977

File:

PDF, 625 KB

1977

45

ChemInform Abstract: Alquds, a New Flavone Glycoside from Calamintha incana.

Abdul-Khaliq Dardass, Sadiqa Firdous, Zulfiqar Ali, Viqar Uddin Ahmad

Journal:

Year:

1999

File:

PDF, 26 KB

1999

46

ChemInform Abstract: Zatatriol: A New Aromatic Constituent from Zataria multiflora.

Muhammad Shaiq Ali, Muhammad Saleem, Viqar Uddin Ahmad

Journal:

Year:

1999

File:

PDF, 24 KB

1999

47

ChemInform Abstract: Salvadiol: A Novel Triterpenoid from Salvia bucharica.

Viqar Uddin Ahmad, Muhammad Zahid, Muhammad Shaiq Ali, Mohammad Iqbal Choudhary, Farzana Akhtar, Zulfiqar Ali, Muhammad Zafar Iqbal

Journal:

Year:

2000

File:

PDF, 24 KB

2000

48

ChemInform Abstract: Salvadiones-A and -B: Two Terpenoids Having Novel Carbon Skeleta from Salvia bucharica.

Viqar Uddin Ahmad, M. Zahid, M. Shaiq Ali, Z. Ali, A. R. Jassbi, M. Abbas, J. Clardy, E. Lobkovsky, R. B. Tareen, M. Zafar Iqbal

Journal:

Year:

2000

File:

PDF, 30 KB

2000

49

ChemInform Abstract: Bucharioside (I) and Buchariol (II) from Salvia bucharica

Viqar Uddin Ahmad, Muhammad Zahid, Muhammad Shaiq Ali, Amir Reza Jassbi, Muhammad Abbas, Zulfiqar Ali, Muhammad Zafar Iqbal

Journal:

Year:

2000

File:

PDF, 24 KB

2000

50

ChemInform Abstract: Optically Active 1,5-Benzothiazepin-4-ones by Ring Transformation of 5-Ylidene-1,3-dioxan-4-ones with 2-Aminothiophenol.

Akbar Ali, Viqar Uddin Ahmad, Joachim Leistner, Juergen Liebscher

Journal:

Year:

2000

File:

PDF, 33 KB

2000

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