Works by Ahmad, Viqar Uddin

Results: 52

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

Published in:

Natural Product Research, 2010, v. 24, n. 20, p. 1877, doi. 10.1080/14786410902884693

By:

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

Publication type:

Article

Kinetics studies on triacontanyl palmitate: a urease inhibitor.

Published in:

Natural Product Research, 2007, v. 21, n. 8, p. 721, doi. 10.1080/14786410600906913

By:

Lodhi, Muhammad Arif;
Abbasi, Muhammad Athar;
Choudhary*, Muhammad Iqbal;
Ahmad, Viqar Uddin

Publication type:

Article

A new 14-membered cyclopeptide alkaloid from Zizyphus oxyphylla.

Published in:

Natural Product Research, 2007, v. 21, n. 3, p. 243, doi. 10.1080/14786410600906574

By:

Inayat-Ur-Rahman;
Khan, Murad Ali;
Arfan, M;
Akhtar, Gul;
Khan, Lajber;
Ahmad, Viqar Uddin

Publication type:

Article

A new antibacterial compound produced by an indigenous marine bacteria - fermentation, isolation, and biological activity.

Published in:

Natural Product Research, 2006, v. 20, n. 14, p. 1326, doi. 10.1080/14786410601102017

By:

Uzair, Bushra;
Ahmed, Nuzhat;
Ahmad, Viqar Uddin;
Kousar, Farzana

Publication type:

Article

New ceramides from Platytaenia multicaule.

Published in:

Natural Product Research, 2006, v. 20, n. 1, p. 69, doi. 10.1080/14786410500049442

By:

Ahmad, Viqar Uddin;
Zubair, Muhammad;
Abbasi, Muhammad Athar;
Kousar, Farzana;
Rashid, Muhammad Abid;
Rasool, Nasir;
Tareen, Rasool Bukhsh

Publication type:

Article

Three new sesquiterpene hemiacetals from Achillea vermicularis.

Published in:

Natural Product Research, 2005, v. 19, n. 6, p. 551, doi. 10.1080/14786410410001715604

By:

Ahmad, Viqar-Uddin;
Farooq, Umar;
Hussain, Javid;
Farmanullah;
Abbasi, Muhammad Athar;
Jassbi, Amir Reza;
Nawaz, Sarfraz Ahmad;
Iqbal Choudhary, M.

Publication type:

Article

Lipoxygenase inhibiting ethyl substituted glycoside from Symplocos racemosa.

Published in:

Natural Product Research, 2005, v. 19, n. 5, p. 509, doi. 10.1080/1478641042000261978

By:

Abbasi †, Muhammad Athar;
Ahmad, Viqar Uddin;
Zubair, Muhammad;
Nawaz, Sarfraz A.;
Lodhi, Muhammad Arif;
Farooq, Umar;
Choudhary, M. Iqbal

Publication type:

Article

Two new diterpene polyesters from Euphorbia decipiens.

Published in:

Natural Product Research, 2005, v. 19, n. 3, p. 267, doi. 10.1080/14786410410001714687

By:

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

Publication type:

Article

Triterpenoid saponin from the bark of Guaiacum Officinale L.

Published in:

Natural Product Research, 2004, v. 18, n. 2, p. 111, doi. 10.1080/1478641031000140866

By:

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

Publication type:

Article

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

Published in:

Natural Product Research, 2004, v. 18, n. 1, p. 11, doi. 10.1080/1478641031000111543

By:

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

Publication type:

Article

Phytochemical Isolation and Biological Activities of Corydalis adiantifolia from Baltistan.

Published in:

Journal of the Chemical Society of Pakistan, 2019, v. 41, n. 3, p. 535, doi. 10.52568/000758/jcsp/41.03.2019

By:

Ali, Iftikhar;
Ali, Zulfiqar;
Alishba;
Zamarrud;
Hussain, Hidayat;
Ahmad, Viqar Uddin

Publication type:

Article

Isolation of Anemonin from Pulsatilla wallichiana and its Biological Activities.

Published in:

Journal of the Chemical Society of Pakistan, 2019, v. 41, n. 2, p. 325, doi. 10.52568/000742/jcsp/41.02.2019

By:

Ali, Iftikhar;
Khatoon, Sakeena;
Amber, Faiza;
Abbas, Qamar;
Ismail, Muhammad;
Engel, Nadja;
Ahmad, Viqar Uddin

Publication type:

Article

Synthesis of Thiosalicylate based Hydrophobic Ionic Liquids and their Applications in Metal Extraction from aqueous solutions.

Published in:

Journal of the Chemical Society of Pakistan, 2015, v. 37, n. 3, p. 535

By:

Muhammad, Shoaib;
Ali, Firdous Imran;
Aslam, Afshan;
Ahmad, Viqar Uddin;
Khan, Ahmad Nawaz;
Hashmi, Imran Ali

Publication type:

Article

Study of Antioxidant, Cytotoxic, and Enzyme Inhibition Activities of Some Symmetrical N3,N3'-Bis(disubstituted)isophthalyl-bis(thioureas) and N3,N3,N3',N3'-Tetrakis(disubstituted)isophthalyl-bis(thioureas) and Their Cu(II) and Ni(II) Complexes

Published in:

Journal of the Chemical Society of Pakistan, 2014, v. 36, n. 3, p. 491

By:

Jamil, Muhammad;
Zubair, Muhammad;
Farid, Muhammad Asim;
Altaf, Ataf Ali;
Rasool, Nasir;
Nasim, Faiz-Ul-Hassan;
Ashraf, Muhammad;
Rashid, Muhammad Abid;
Ejaz, Syeda Abida;
Yaqoob, Asma;
Ahmad, Viqar Uddin

Publication type:

Article

Antitumor evaluation of two selected Pakistani plant extracts on human bone and breast cancer cell lines.

Published in:

BMC Complementary & Alternative Medicine, 2016, v. 16, p. 1, doi. 10.1186/s12906-016-1215-9

By:

Engel, Nadja;
Ali, Iftikhar;
Adamus, Anna;
Frank, Marcus;
Dad, Akber;
Ali, Sajjad;
Nebe, Barbara;
Atif, Muhammad;
Ismail, Muhammad;
Langer, Peter;
Ahmad, Viqar Uddin

Publication type:

Article

Constituents of the essential oil of Perovskia atriplicifolia Benth.

Published in:

Flavour & Fragrance Journal, 1999, v. 14, n. 1, p. 38, doi. 10.1002/(SICI)1099-1026(199901/02)14:1<38::AID-FFJ778>3.0.CO;2-8

By:

Jassbi, Amir Reza;
Ahmad, Viqar Uddin;
Tareen, Rasool Bakhsh

Publication type:

Article

ISOLATION AND STRUCTURE ELUCIDATION OF A NEW OLEANANE TYPE GLYCOSIDE FROM THE AERIAL PORTION OF CESTRUM NOCTURNUM.

Published in:

Bulletin of the Chemical Society of Ethiopia, 2020, v. 34, n. 1, p. 141, doi. 10.4314/bcse.v34i1.13

By:

Inayat, Humaira;
Khan, Ikhtiar;
Ahmad, Viqar Uddin;
Rani, Mubeen;
Khan, Murad Ali

Publication type:

Article

Antidiabetic Flavonol Glycosides from Eryngium caeruleum.

Published in:

Records of Natural Products, 2017, v. 11, n. 2, p. 229

By:

Rehman, Attiq Ur;
Ali Hashmi, Muhammad;
Tehseen, Yildiz;
Khan, Afsar;
Suleman Khan, Saleha;
Iqbal, Jamshed;
Perveen, Shagufta;
Khan, Sehroon;
Farooq, Umar;
Uddin Ahmad, Viqar

Publication type:

Article

Anticancer and Alkaline Phosphatase Inhibitory Effects of Compounds Isolated from the Leaves of Olea ferruginea Royle.

Published in:

Records of Natural Products, 2015, v. 9, n. 1, p. 164

By:

Hashmi, Muhammad Ali;
Shah, Hamid Saeed;
Khan, Afsar;
Farooq, Umar;
Iqbal, Jamshed;
Ahmad, Viqar Uddin;
Perveen, Shagufta

Publication type:

Article

A New Ursane type Sulfated Saponin from Zygophyllum fabago Linn.

Published in:

Records of Natural Products, 2014, v. 8, n. 4, p. 354

By:

Khan, Saleha Suleman;
Khan, Ajmal;
Khan, Afsar;
Farooq, Umar;
Ahmed, Amir;
Zahoor, Aqib;
Ahmad, Viqar Uddin;
Sener, Bilge;
Küçükboyacı, Nurgün

Publication type:

Article

Chemical Constituents from Erigeron bonariensis L. and their Chemotaxonomic Importance.

Published in:

Records of Natural Products, 2012, v. 6, n. 4, p. 376

By:

Zahoor, Aqib;
Hussain, Hidayat;
Khan, Afsar;
Ahmed, Ishtiaq;
Ahmad, Viqar Uddin;
Krohn, Karsten

Publication type:

Article

Laceioside, a new cycloartane saponin from Astragalus tephrosioides Boiss. var. lacei (Ali) Kirchoff.

Published in:

Natural Product Research, 2019, v. 33, n. 3, p. 393, doi. 10.1080/14786419.2018.1455042

By:

Ahmad, Viqar Uddin;
Mohammad, Faryal Vali;
Tareen, Rasool Bakhsh

Publication type:

Article

Chemical and antimicrobial studies on the essential oil from Salvia santolinifolia Boiss.

Published in:

Pakistan Journal of Pharmaceutical Sciences, 2013, v. 26, n. 1, p. 39

By:

Nadir, Muhammad;
Rasheed, Munawwer;
Sherwani, Sikandar Khan;
Kazmi, Shahana Urooj;
Ahmad, Viqar Uddin

Publication type:

Article

Tyrosinase inhibitory pentacyclic triterpenes and analgesic and spasmolytic activities of methanol extracts of Rhododendron collettianum.

Published in:

Phytotherapy Research, 2007, v. 21, n. 11, p. 1076, doi. 10.1002/ptr.2216

By:

Ullah, Farman;
Hussain, Hidayat;
Hussain, Javid;
Bukhari, Ishfaq A.;
Khan, Mahmud Tareq Hassan;
Choudhary, M. Iqbal;
Gilani, Anwar H.;
Ahmad, Viqar Uddin

Publication type:

Article

Biological activity of Spatoglossum asperum: a brown alga.

Published in:

Phytotherapy Research, 2005, v. 19, n. 7, p. 618, doi. 10.1002/ptr.1699

By:

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

Publication type:

Article

Hypolipidaemic activity of seaweed from Karachi coast.

Published in:

Phytotherapy Research, 2002, v. 16, n. 5, p. 479, doi. 10.1002/ptr.909

By:

Ara, Jehan;
Sultana, Viqar;
Qasim, Rashida;
Ahmad, Viqar Uddin

Publication type:

Article

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

Published in:

1999

By:

Shehnaz, Darakhshanda;
Hamid, Faiza;
Baqai, Fehmida T.;
Uddin Ahmad, Viqar;
Shehnaz, D;
Hamid, F;
Baqai, F T;
Uddin Ahmad, V

Publication type:

journal article

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

Published in:

Phytotherapy Research, 1999, v. 13, n. 4, p. 304, doi. 10.1002/(SICI)1099-1573(199906)13:4<304::AID-PTR439>3.0.CO;2-9

By:

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

Publication type:

Article

Acteoside: A new antihypertensive drug.

Published in:

Phytotherapy Research, 1995, v. 9, n. 7, p. 525, doi. 10.1002/ptr.2650090713

By:

Ahmad, Mansoor;
Rizwani, Ghazala H.;
Aftab, Khalid;
Ahmad, Viqar Uddin;
Gilani, Anwarul Hasan;
Ahmad, Shahida Perveen

Publication type:

Article

Effects of kaempferol-3-O-rutinoside on rat blood pressure.

Published in:

Phytotherapy Research, 1993, v. 7, n. 4, p. 314, doi. 10.1002/ptr.2650070411

By:

Ahmad, Mansoor;
Gilani, Anwar-Ul-Hassan;
Aftab, Khalid;
Ahmad, Viqar Uddin

Publication type:

Article

Protective role of Stokeyia indica in liver dysfunction and associated complications in acetaminophen intoxicated rats.

Published in:

Clinical Phytoscience, 2019, v. 5, n. 1, p. N.PAG, doi. 10.1186/s40816-019-0122-2

By:

Taj, Darakhshan;
Tariq, Amna;
Sultana, Viqar;
Ara, Jehan;
Ahmad, Viqar Uddin;
Ehteshamul-Haque, Syed

Publication type:

Article

Organotin(IV) compounds of n-propyl and isopropyl glutarate: Their synthesis, spectral characterization and antibacterial activity.

Published in:

Organic Communications, 2012, v. 5, n. 1, p. 18

By:

Hussain, Javid;
Hussain, Hidayat;
Ahmad, Viqar Uddin;
Al-Harrasi, Ahmed;
Badshah, Amin

Publication type:

Article

New phenethyl alcohol glycosides from Stachys parviflora.

Published in:

Journal of Asian Natural Products Research, 2006, v. 8, n. 1/2, p. 105, doi. 10.1080/10286020500478708

By:

Ahmad, Viqar Uddin;
Arshad, Saima;
Bader, Sadia;
Ahmed, Amir;
Iqbal, Shazia;
Tareen, Rasool Buksh

Publication type:

Article

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

Published in:

Chemistry Central Journal, 2018, v. 12, n. 1, p. 1, doi. 10.1186/s13065-018-0495-1

By:

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

Publication type:

Article

Palladium(0) catalyzed Suzuki cross-coupling reaction of 2,5-dibromo-3-methylthiophene: selectivity, characterization, DFT studies and their biological evaluations.

Published in:

Chemistry Central Journal, 2018, v. 12, n. 1, p. 1, doi. 10.1186/s13065-018-0404-7

By:

Rizwan, Komal;
Zubair, Muhammad;
Rasool, Nasir;
Mahmood, Tariq;
Ayub, Khurshid;
Alitheen, Noorjahan Banu;
Aziz, Muhammad Nazirul Mubin;
Akhtar, Muhammad Nadeem;
Nasim, Faiz-ul-Hassan;
Bukhary, Snober Mona;
Ahmad, Viqar Uddin;
Rani, Mubeen

Publication type:

Article

Caratuberside A2: A New Pregnane from Caralluma Tuberculata.

Published in:

Spectroscopy Letters, 1993, v. 26, n. 8, p. 1427, doi. 10.1080/00387019308011620

By:

Rizwani, Ghazala H.;
Ahmad, Mansoor;
Usmanghani, K.;
Ahmad, Viqar Uddin

Publication type:

Article

Nepethalates A and B: Two New Phthalate Derivatives from Nepeta clarkei.

Published in:

Helvetica Chimica Acta, 2011, v. 94, n. 11, p. 2106, doi. 10.1002/hlca.201100182

By:

Hussain, Javid;
Rehman, Najeeb Ur;
Hussain, Hidayat;
Ali, Liaqat;
Al-Harrasi, Ahmed;
Ahmad, Viqar Uddin

Publication type:

Article

Four New Diterpenoids from Ballota limbata.

Published in:

Helvetica Chimica Acta, 2004, v. 87, n. 3, p. 682

By:

Viqar Uddin Ahmad;
Umar Farooq;
Ahmed Abbaskhan;
Javid Hussain;
Muhammad Athar Abbasi;
Sarfraz Ahmad Nawaz;
M. Iqbal Choudhary

Publication type:

Article

Phosphodiesterase-Inhibiting Glycosides from Symplocos racemosa.

Published in:

Helvetica Chimica Acta, 2004, v. 87, n. 1, p. 67

By:

Viqar Uddin Ahmad;
Muhammad Athar Abbasi;
Muhammad Zubair;
Naheed Fatima;
Umar Farooq;
M. Iqbal Choudhary

Publication type:

Article

New Glycosides from Salvia moorcroftiana (Lamiaceae).

Published in:

Helvetica Chimica Acta, 2003, v. 86, n. 6, p. 2021

By:

Muhammad Zahid;
Muhammad Saeed;
Muhammad Asim;
Omar Ishrud;
Shihua Wu;
Viqar Uddin Ahmad;
Yuanjiang Pan

Publication type:

Article

New Cycloartane and Flavonol Glycosides from Corchorus depressus.

Published in:

Helvetica Chimica Acta, 2002, v. 85, n. 2, p. 689, doi. 10.1002/1522-2675(200202)85:2<689::AID-HLCA689>3.0.CO;2-V

By:

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

Publication type:

Article

Two New Spirostanol Glycosides from Cestrum parqui.

Published in:

Helvetica Chimica Acta, 2001, v. 84, n. 11, p. 3350, doi. 10.1002/1522-2675(20011114)84:11<3350::AID-HLCA3350>3.0.CO;2-U

By:

Baqai, Fehmida Tasnim;
Ali, Akbar;
Ahmad, Viqar Uddin

Publication type:

Article

Eight New Diterpenoids from Euphorbia decipiens.

Published in:

Helvetica Chimica Acta, 2001, v. 84, n. 7, p. 1980, doi. 10.1002/1522-2675(20010711)84:7<1980::AID-HLCA1980>3.0.CO;2-2

By:

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

Publication type:

Article

Three New Diterpenoids from Euphorbia cheiradenia.

Published in:

Helvetica Chimica Acta, 2000, v. 83, n. 10, p. 2751, doi. 10.1002/1522-2675(20001004)83:10<2751::AID-HLCA2751>3.0.CO;2-B

By:

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

Publication type:

Article

A new secoiridoid glycosidic lignan ester from the leaves of Olea ferruginea.

Published in:

2015

By:

Hashmi, Muhammad Ali;
Khan, Afsar;
Farooq, Umar;
Rani, Mubeen;
Ahmad, Viqar Uddin;
Khan, Abdur Rahman

Publication type:

Other

Structure elucidation of two new unusual monoterpene glycosides from Euphorbia decipiens, by 1D and 2D NMR experiments.

Published in:

Magnetic Resonance in Chemistry, 2011, v. 49, n. 10, p. 673, doi. 10.1002/mrc.2795

By:

Demirkiran, Ozlem;
Topcu, Gulacti;
Hussain, Javid;
Uddin Ahmad, Viqar;
Choudhary, M. Iqbal

Publication type:

Article

A New Bacillus pasteurii Urease Inhibitor from Euphorbia decipiens.

Published in:

Journal of Enzyme Inhibition & Medicinal Chemistry, 2006, v. 21, n. 5, p. 531, doi. 10.1080/14756360600586072

By:

Lodhi, Muhammad Arif;
Hussain, Javid;
Abbasi, Muhammad Athar;
Jassbi, Amir Reza;
Choudhary, Muhammad Iqbal;
Ahmad, Viqar Uddin

Publication type:

Article

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

Published in:

Chemistry & Biodiversity, 2006, v. 3, n. 9, p. 996, doi. 10.1002/cbdv.200690109

By:

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

Publication type:

Article

Investigation of antitussive and toxicological activity of Ballota limbata in mice.

Published in:

Pharmaceutical Biology, 2011, v. 49, n. 6, p. 627, doi. 10.3109/13880209.2011.563317

By:

Haq, Rizwan ul;
Farooq, Umar;
Wahab, Abdul;
Raza, Mohsin;
Ahmad, Viqar Uddin;
Khan, Rafeeq Alam

Publication type:

Article

Secondary Metabolites from a Killer and Antagonistic Yeast Strain, Y20-Sporidiobolus ruineniae and Y16-Pichia anomala.

Published in:

Chemistry of Natural Compounds, 2020, v. 56, n. 3, p. 528, doi. 10.1007/s10600-020-03079-y

By:

Mushtaq, Muhammad;
Alam, Muhammad Shahab;
Sharfun-Nahar;
Hashmi, M. H.;
Ahmad, Viqar Uddin

Publication type:

Article