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51

ChemInform Abstract: 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:

Year:

2001

File:

PDF, 25 KB

2001

52

ChemInform Abstract: Chemistry of Zataria multiflora (Lamiaceae).

Muhammad Shaiq Ali, Muhammad Saleem, Zulfiqar Ali, Viqar Uddin Ahmad

Journal:

Year:

2001

File:

PDF, 26 KB

2001

53

ChemInform Abstract: Stereoselective Synthesis of 3,4-Disubstituted Pyroglutamates by Ring Transformation of 5-Ylidene-1,3-dioxan-4-ones with N-(Diphenylmethylene)-glycinate.

Akbar Ali, Viqar Uddin Ahmad, Burkhard Ziemer, Juergen Liebscher

Journal:

Year:

2001

File:

PDF, 32 KB

2001

54

ChemInform Abstract: Novel Cycloartane Saponins from Corchorus depressus L.

Viqar Uddin Ahmad, Akbar Ali, Zulfiqar Ali, Farah Naz Zafar, Muhammad Zahid

Journal:

Year:

2001

File:

PDF, 26 KB

2001

55

ChemInform Abstract: 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:

Year:

2001

File:

PDF, 27 KB

2001

56

ChemInform Abstract: 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, Juergen Liebscher

Journal:

Year:

2002

File:

PDF, 32 KB

2002

57

First Natural Urease Inhibitor from Euphorbia decipiens.

Viqar Uddin Ahmad, Javid Hussain, Hidayat Hussain, Amir Reza Jassbi, Farman Ullah, Muhammad Arif Lodhi, Amsha Yasin, Muhammad Iqbal Choudhary

Journal:

Year:

2003

File:

PDF, 80 KB

2003

58

New Triterpenoids from Corchorus trilocularis.

Amir Ahmed, Muhammad Asim, Muhammad Zahid, Akbar Ali, Viqar Uddin Ahmad

Journal:

Year:

2003

File:

PDF, 78 KB

2003

59

Two New Diterpenoids from Ballota limbata.

Viqar Uddin Ahmad, Umar Farooq, Javid Hussain, Farman Ullah, Sarfraz Ahmad Nawaz, Muhammad Iqbal Choudhary

Journal:

Year:

2004

File:

PDF, 62 KB

2004

60

Tyrosinase Inhibitors from Rhododendron collettianum and Their Structure—Activity Relationship (SAR) Studies.

Viqar Uddin Ahmad, Farman Ullah, Javid Hussain, Umar Farooq, Muhammad Zubair, Mahmud Tareq Hassan Khan, Muhammad Iqbal Choudhary

Journal:

Year:

2005

File:

PDF, 12 KB

2005

61

A New Ketone and a Known Anticancer Triterpenoid from the Leaves of Onosma limitaneum.

Viqar Uddin Ahmad, Farzana Kousar, Afsar Khan, Muhammad Zubair, Shazia Iqbal, Rasool Bukhsh Tareen

Journal:

Year:

2005

File:

PDF, 11 KB

2005

62

Three New Cholinesterase-Inhibiting cis-Clerodane Diterpenoids from Otostegia limbata.

Viqar Uddin Ahmad, Afsar Khan, Umar Farooq, Farzana Kousar, Saleha Suleman Khan, Sarfraz Ahmad Nawaz, Muhammad Athar Abbasi, Muhammad Iqbal Choudhary

Journal:

Year:

2005

File:

PDF, 13 KB

2005

63

New Glycosides from Salvia moorcroftiana (Lamiaceae)

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

Journal:

Helvetica Chimica Acta

Year:

2003

Language:

english

File:

PDF, 92 KB

english, 2003

64

Phosphodiesterase-Inhibiting Glycosides from Symplocos racemosa

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

Journal:

Helvetica Chimica Acta

Year:

2004

Language:

english

File:

PDF, 98 KB

english, 2004

65

Four New Diterpenoids from Ballota limbata

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

Journal:

Helvetica Chimica Acta

Year:

2004

Language:

english

File:

PDF, 112 KB

english, 2004

66

A New Ketone and a Known Anticancer Triterpenoid from the Leaves of Onosma limitaneum

Viqar Uddin Ahmad, Farzana Kousar, Afsar Khan, Muhammad Zubair, Shazia Iqbal, Rasool Bukhsh Tareen

Journal:

Helvetica Chimica Acta

Year:

2005

Language:

english

File:

PDF, 51 KB

english, 2005

67

Bidesmosidic Oleanane Saponins from Xerospermum noronhianum

Tan Pei Jean, Khozirah Shaari, Christian Paetz, Intan Safinar Ismail, Faridah Abas, Nordin H. Lajis, Viqar Uddin Ahmad

Journal:

Helvetica Chimica Acta

Year:

2009

Language:

english

File:

PDF, 190 KB

english, 2009

68

Tanacetamide D: A New Ceramide from Tanacetum artemisioides

Javid Hussain, Meamoona Munir, Zahid Hassan, Naseem Bano, Saima Arshad, Viqar Uddin Ahmad

Journal:

Helvetica Chimica Acta

Year:

2010

Language:

english

File:

PDF, 143 KB

english, 2010

69

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

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

Journal:

Helvetica Chimica Acta

Year:

2011

Language:

english

File:

PDF, 168 KB

english, 2011

70

Arguticin, a New Sesquiterpene from Pluchea arguta

Viqar Uddin Ahmad, Kaniz Fizza

Journal:

European Journal of Organic Chemistry

Year:

1987

Language:

english

File:

PDF, 152 KB

english, 1987

71

Synthesis of Some Ribose-Alkylated 5′-UMP Derivatives

Khurshid Alam Khan, M. Qudrat-e-Khuda, Kaniz Fizza, Viqar Uddin Ahmad

Journal:

European Journal of Organic Chemistry

Year:

1992

Language:

english

File:

PDF, 365 KB

english, 1992

72

Structure determination of bioactive galloyl derivatives by NMR spectroscopy

Viqar Uddin Ahmad, Muhammad Zubair, Muhammad Athar Abbasi, Muhammad Abid Rashid, Nasir Rasool, Shamsun Nahar Khan, M. Iqbal Choudhary, Farzana Kousar

Journal:

Magnetic Resonance in Chemistry

Year:

2005

Language:

english

File:

PDF, 98 KB

english, 2005

73

Complete 1H and 13C NMR assignments of two new trans-clerodane diterpenoids from Otostegia limbata

Umar Farooq, Afsar Khan, Viqar Uddin Ahmad, Azhar-Ul-Haq, Saleha Suleman Khan, Robina Farooq, Arshid Pervez, Mohammad Mahroof Shah

Journal:

Magnetic Resonance in Chemistry

Year:

2007

Language:

english

File:

PDF, 132 KB

english, 2007

74

New terpenoids from Stachys parviflora Benth

Viqar Uddin Ahmad, Saima Arshad, Sadia Bader, Shazia Iqbal, Afsar Khan, Saleha Suleman Khan, Javid Hussain, Rasool Bakhsh Tareen, Amir Ahmed

Journal:

Magnetic Resonance in Chemistry

Year:

2008

Language:

english

File:

PDF, 107 KB

english, 2008

75

Brauhenefloroside E and F; acylated flavonol glycosides from Stocksia brauhica Linn

Viqar Uddin Ahmad, Sadia Bader, Saima Arshad, Amir Ahmed, Afsar Khan, Shazia Iqbal, Munawwer Rasheed, Rasool Bakhsh Tareen

Journal:

Magnetic Resonance in Chemistry

Year:

2010

Language:

english

File:

PDF, 126 KB

english, 2010

76

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

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

Journal:

Magnetic Resonance in Chemistry

Year:

2011

Language:

english

File:

PDF, 137 KB

english, 2011

77

4-epiplucheinol, a sesquiterpene from Pluchea arguta

Viqar Uddin Ahmad, Kaniz Fizza

Journal:

Year:

1986

Language:

english

File:

PDF, 154 KB

english, 1986

78

Arguticinin, a sesquiterpene from Pluchea arguta

Viqar Uddin Ahmad, Kaniz Fizza

Journal:

Year:

1988

Language:

english

File:

PDF, 205 KB

english, 1988

79

Saponins from Primula denticulata

Viqar Uddin Ahmad, Viqar Sultana, Shoib Arif, Qazi Najmus Saqib

Journal:

Year:

1988

Language:

english

File:

PDF, 206 KB

english, 1988

80

Pinnatazane, a bridged cyclic ether sesquiterpene from Laurencia pinnatifida

Atta-Ur-Rahman, Viqar Uddin Ahmad, Shaheen Bano, S.A. Abbas, K.A. Alvi, M. Shaiq Ali, Helens M. Lu, Jon Clardy

Journal:

Year:

1988

Language:

english

File:

PDF, 109 KB

english, 1988

81

Isolation of two sesquiterpenes from Pluchea arguta

Viqar Uddin Ahmad, Kaniz Fizza, Azra Sultana

Journal:

Year:

1989

Language:

english

File:

PDF, 244 KB

english, 1989

82

Saponins from the leaves ofGuaiacum officinale

Viqar Uddin Ahmad, Shaista Perveen, Shaheen Bano

Journal:

Year:

1990

Language:

english

File:

PDF, 405 KB

english, 1990

83

Cleocarpone, a triterpenoid from Cleome brachycarpa

Viqar Uddin Ahmad, Sabiha Qazi, Nadeem Bin Zia, Changfu Xu, Jon Clardy

Journal:

Year:

1990

Language:

english

File:

PDF, 262 KB

english, 1990

84

Terpenoids from marine red alga Laurencia pinnatifida

Viqar Uddin Ahmad, Mohammad Shaiq Ali

Journal:

Year:

1991

Language:

english

File:

PDF, 286 KB

english, 1991

85

Leucasin, a triterpene saponin from Leucas nutans

Mashooda Hasan, Dadu Khan Burdi, Viqar Uddin Ahmad

Journal:

Year:

1991

Language:

english

File:

PDF, 365 KB

english, 1991

86

Macrophylloside, a flavone glucoside from Primula macrophylla

Viqar Uddin Ahmad, Mohammad Ghani Shah, Faryal Vali Mohammad, Nargis Ismail, Mushtaq Noorwala

Journal:

Year:

1991

Language:

english

File:

PDF, 227 KB

english, 1991

87

Sesquiterpenes from Pluchea arguta

Viqar Uddin Ahmad, Kaniz Fizza, Mohammad Aslam Khan, Tanveer Ahmed Farooqui

Journal:

Year:

1991

Language:

english

File:

PDF, 376 KB

english, 1991

88

Demethylacrovestone from Achronychia pedunculata fruits

Leslie B. De Silva, Wimal M. Herath, Chandani Liyanage, Vijaya Kumar, Viqar Uddin Ahmad, Azra Sultana

Journal:

Year:

1991

Language:

english

File:

PDF, 178 KB

english, 1991

89

A benzoquinone and a coumestan from Psoralea plicata

Nazli Rasool, Abdul Qasim Khan, Viqar Uddin Ahmad, Abdul Malik

Journal:

Year:

1991

Language:

english

File:

PDF, 383 KB

english, 1991

90

Dolastane diterpenoids from the brown alga Dictyota indica

Viqar Uddin Ahmad, Shaista Parveen, Shaheen Bano, Wazir Shaikh, Mustafa Shameel

Journal:

Year:

1991

Language:

english

File:

PDF, 439 KB

english, 1991

91

5-Hydroxy-3,6,7,2′,5′-pentamethoxyflavone from Inula grantioides

Viqar Uddin Ahmad, Nargis Ismail

Journal:

Year:

1991

Language:

english

File:

PDF, 174 KB

english, 1991

92

A triterpenoid saponin from Zygophyllum propinquum

Viqar Uddin Ahmad, Ghazala, Shafi Uddin

Journal:

Year:

1992

Language:

english

File:

PDF, 436 KB

english, 1992

93

A sterol glycoside from marine green alga Codium iyengarii

Viqar Uddin Ahmad, Rahman Aliya, Shaista Perveen, Mustafa Shameel

Journal:

Year:

1992

Language:

english

File:

PDF, 310 KB

english, 1992

94

Triterpenoid saponins from leaves of Castanospermum australe

Viqar Uddin Ahmad, Waseemuddin Ahmed, Khan Usmanghani

Journal:

Year:

1992

Language:

english

File:

PDF, 297 KB

english, 1992

95

Two sesquiterpenes from Pluchea arguta

Viqar Uddin Ahmad, Tanveer Ahmed Farooqui, Azra Sultana, Kaniz Fizza, Rasheeda Khatoon

Journal:

Year:

1992

Language:

english

File:

PDF, 257 KB

english, 1992

96

Sterols from marine green alga Codium decorticatum

Viqar Uddin Ahmad, Rahman Aliya, Shaista Perveen, Mustafa Shameel

Journal:

Year:

1993

Language:

english

File:

PDF, 541 KB

english, 1993

97

Macrophyllicin, a saponin from Primula macrophylla

Viqar Uddin Ahmad, Mohammad Ghani Shah, Faryal Vali Mohammad, Fehmida T. Baqai

Journal:

Year:

1993

Language:

english

File:

PDF, 408 KB

english, 1993

98

Jamtinine, an alkaloid from Cocculus hirsutus

Viqar Uddin Ahmad, Shaista Iqbal

Journal:

Year:

1993

Language:

english

File:

PDF, 245 KB

english, 1993

99

Saponins from Zygophyllum propinquum

Viqar Uddin Ahmad, Ghazala, Shafi Uddin, Mohammad Shaiq Ali

Journal:

Year:

1993

Language:

english

File:

PDF, 437 KB

english, 1993

100

Santoflavone, A 5-deoxyflavonoid from Achillea santolina

Viqar Uddin Ahmad, Murad Ali Khan, Fehmida T. Baqai, Rasool Bux Tareen

Journal:

Year:

1995

Language:

english

File:

PDF, 221 KB

english, 1995