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Sammer Yousuf

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TOP 3
Sammer Yousuf; Khalid M Khan; Frazana Naz; Shahnaz Perveen; Ghulam A Miana
1-(2-Methyl-5-nitro-1H-imidazol-1-yl)acetone.
Muhammad Taha; Ahmad Nazif Aziz; Nor Hadiani Ismail; Faridahanim Mohd Jaafar; Sammer Yousuf
(E)-N'-(3,4-Dihy-droxy-benzyl-idene)-2,4-dimethyl-benzohydrazide monohydrate.
Salman Zafar; Sammer Yousuf; Marium Bibi; M Iqbal Choudhary
New metabolites from fungal biotransformation of an oral contraceptive agent: methyloestrenolone.

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2013: Sammer Yousuf; Khalid M Khan; Frazana Naz; Shahnaz Perveen; Ghulam A Miana
1-(2-Methyl-5-nitro-1H-imidazol-1-yl)acetone.
Acta crystallographica. Section E, Structure reports online 2013;69(Pt 4):o552.
2013: Muhammad Taha; Ahmad Nazif Aziz; Nor Hadiani Ismail; Faridahanim Mohd Jaafar; Sammer Yousuf
(E)-N'-(3,4-Dihy-droxy-benzyl-idene)-2,4-dimethyl-benzohydrazide monohydrate.
Acta crystallographica. Section E, Structure reports online 2013;69(Pt 4):o490.
2013: Salman Zafar; Sammer Yousuf; Marium Bibi; M Iqbal Choudhary
New metabolites from fungal biotransformation of an oral contraceptive agent: methyloestrenolone.
Steroids 2013;78(4):418-25.
2013: Muhammad Taha; Nor Hadiani Ismail; Faridahanim Mohd Jaafar; Khalid M Khan; Sammer Yousuf
(E)-2,4-Dimethyl-N'-(2-methyl-benzyl-idene)benzohydrazide.
Acta crystallographica. Section E, Structure reports online 2013;69(Pt 3):o400.
2013: Sammer Yousuf; Nida Ambreen; Khalid M Khan; Shazia Shah; Shakil Ahmad
5-Chloro-2-(4-meth-oxy-phen-yl)-1,3-benzo-thia-zole.
Acta crystallographica. Section E, Structure reports online 2013;69(Pt 3):o360.
2013: Hoong-Kun Fun; Atim Johnson; Wan-Sin Loh; Sammer Yousuf; Ededet Eno
Bis-(3,5-diamino-4H-1,2,4-triazol-1-ium) 3,4-dioxocyclo-butane-1,2-diolate.
Acta crystallographica. Section E, Structure reports online 2013;69(Pt 3):o353-4.
2013: Yahia Nasser Mabkhot; Fatima Alatibi; Assem Barakat; M Iqbal Choudhary; Sammer Yousuf
(E)-Ethyl 2-anilino-5-[3-(dimethyl-amino)-acrylo-yl]-4-phenyl-thio-phene-3-carboxyl-ate.
Acta crystallographica. Section E, Structure reports online 2013;69(Pt 3):o351.
2013: Muhammad Taha; M Syukri Baharudin; Nor Hadiani Ismail; Syed Adnan Ali Shah; Sammer Yousuf
(E)-2-Meth-oxy-N'-(2,4,6-trihy-droxy-benzyl-idene)benzohydrazide.
Acta crystallographica. Section E, Structure reports online 2013;69(Pt 2):o277.
2013: M Syukri Baharudin; Nor Hadiani Ismail; Syed Adnan Ali Shah; Muhammad Taha; Sammer Yousuf
(E)-N'-(4-Chloro-benzyl-idene)-2-meth-oxy-benzohydrazide.
Acta crystallographica. Section E, Structure reports online 2013;69(Pt 2):o276.
2013: Muhammad Taha; Ahmad Nazif Aziza; Nor Hadiani Ismail; Syed Adnan Ali Shah; Sammer Yousuf
3-[2-(Triphenyl-phosphanyl-idene)acet-yl]-2H-chromen-2-one.
Acta crystallographica. Section E, Structure reports online 2013;69(Pt 2):o245.
2013: Syed Muhammad Saad; Imran Khan; Khalid M Khan; Shahnaz Perveen; Sammer Yousuf
N-(2,5-Dimeth-oxy-phen-yl)-6-nitro-quinazolin-4-amine.
Acta crystallographica. Section E, Structure reports online 2013;69(Pt 1):o8.
2013: Syed Muhammad Saad; Syed Moazzam Haider; Khalid M Khan; Shahnaz Perveen; Sammer Yousuf
2-{[(Dimethyl-amino)-methyl-idene]amino}-5-nitro-benzonitrile.
Acta crystallographica. Section E, Structure reports online 2013;69(Pt 1):o75.
2012: Syed Muhammad Saad; Itrat Fatima; Khalid M Khan; Shahnaz Perveen; Sammer Yousuf
N'-(3-Chloro-benzyl-idene)-4-hy-droxy-benzohydrazide.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 12):o3499.
2012: Uzma Ashiq; Hina Ismail; Rifat Ara Jamal; Khalid Mohammed Khan; Sammer Yousuf
3-(2-Ethyl-2-phenyl-hydrazin-1-yl-idene)indolin-2-one.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 12):o3473.
2012: Muhammad Taha; M Syukri Baharudin; Nor Hadiani Ismail; Syed Adnan Ali Shah; Sammer Yousuf
N'-[(E)-2,3-Dihy-droxy-benzyl-idene]-2-meth-oxy-benzohydrazide.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 12):o3256.
2012: M Syukri Baharudin; Nor Hadiani Ismail; Syed Adnan Ali Shah; Muhammad Taha; Sammer Yousuf
N'-[(E)-2-Hy-droxy-5-meth-oxy-benzyl-idene]-2-meth-oxy-benzohydrazide.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 12):o3255.
2012: Sammer Yousuf; Nida Ambreen; Khalid M Khan; Shazia Shah; Shakil Ahmad
5-Chloro-2-(3,4,5-trimeth-oxy-phen-yl)-1,3-benzothia-zole.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 10):o3057.
2012: Muhammad Arshad; Sumayya Saeed; Sammer Yousuf; Fatima Z Basha
4-Meth-oxy-N-(4-meth-oxy-2-nitro-phen-yl)benzamide.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 10):o3028.
2012: Sammer Yousuf; Nida Ambreen; Asma Mukhtar; Syed Muhammad Saad; Khalid M Khan
Ethyl (E)-3-(6-methyl-4-oxo-4H-chromen-3-yl)prop-2-enoate.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 10):o2948.
2012: Sammer Yousuf; Nida Ambreen; Asma Mukhtar; Syed Muhammad Saad; Khalid M Khan
6-Methyl-4-oxo-4H-chromene-3-carbaldehyde.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 10):o2920.
2012: Sammer Yousuf; Nida Ambreen; Khalid M Khan; Shazia Shah; Shakil Ahmad
2-(5-Chloro-1,3-benzothia-zol-2-yl)-4-meth-oxy-phenol.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 10):o2877.
2012: Muhammad Taha; Nor Hadiani Ismail; Humera Naz; Aqilah Abd Rahman; Sammer Yousuf
(E)-4-Meth-oxy-N'-(3,4,5-trihy-droxy-benzyl-idene)benzohydrazide methanol monosolvate.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 10):o2846.
2012: Sammer Yousuf; Nida Ambreen; Khalid M Khan; Shazia Shah; Shakil Ahmed
5-Chloro-2-phenyl-1,3-benzothia-zole.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 9):o2799.
2012: Sammer Yousuf; Aurang Zeb; Farhana Batool; Fatima Z Basha
2-(2-Methyl-5-nitro-1H-imidazol-1-yl)ethyl methane-sulfonate.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 9):o2781.
2012: Humera Naz; Aqilah Abd Rahman; Muhammad Taha; Nor Hadiani Ismail; Sammer Yousuf
Methyl (E)-3,5-dimeth-oxy-2-{[2-(4-meth-oxy-benzo-yl)hydrazin-1-yl-idene]meth-yl}benzoate.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 9):o2671.
2012: Sammer Yousuf; Nida Ambreen; Sarosh Iqbal; Khalid M Khan
1-(3-Meth-oxy-phen-yl)-2-(phenyl-sulfon-yl)ethan-1-one.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 8):o2562.
2012: Sammer Yousuf; Rabia Farooq; Hina Siddiqui; M Iqbal Choudhary
2-[3-(1,3-Benzothia-zol-2-yl)-2,2-di-methyl-prop-yl]-2-methyl-2,3-di-hydro-1,3-benzothia-zole.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 8):o2349.
2012: Sammer Yousuf; Saira Bano; M Iqbal Choudhary
17α-Acet-oxy-11β-hy-droxy-6α-methyl-pregn-4-ene-3,20-dione.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 7):o2006.
2012: Ismail Warad; Abdullah S Aldwayyan; Fahad M Al-Jekhedab; M Iqbal Choudhary; Sammer Yousuf
[1,2-Bis(diphenyl-phosphan-yl)ethane-κ(2)P,P']dichloridopalladium(II) dimethyl sulfoxide monosolvate.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 7):m984-5.
2012: Sammer Yousuf; Syed M Younas; Nida Ambreen; Khalid M Khan; Ghulam A Miana
8-[(2-Hy-droxy-phen-yl)imino]-3,5a,9-trimethyl-3a,4,5,5a,8,9b-hexa-hydro-naphtho-[1,2-b]furan-2(3H)-one.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 7):o2158.
2012: Sammer Yousuf; Syed M Younas; Nida Ambreen; Khalid M Khan; Ghulam A Miana
3,5a,9-Trimethyl-8-(2-phenylhydrazin-1-ylidene)-4,5,5a,9b-tetrahydro-3aH,8H-naphtho[1,2-b]furan-2(3H)-one.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 7):o2112.
2012: Sammer Yousuf; Rabia Farooq; Hina Siddiqui; M Iqbal Choudhary
N-(4-Meth-oxy-2-nitro-phen-yl)-N-(methyl-sulfon-yl)methane-sulfonamide.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 7):o2090.
2012: Sammer Yousuf; Muhammad Arshad; Hafiza Madiha Butt; Sumayya Saeed; Fatima Z Basha
2-Azido-1-(4-nitro-phen-yl)ethanone.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 6):o1952.
2012: Ismail Warad; Saud I Al-Resayes; Afaf Alruwaili; M Iqbal Choudhary; Sammer Yousuf
5,5-Dimethyl-2,2-bis-(pyridin-2-yl)-1,3-diazinane.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 6):o1786.
2012: Muhammad Arshad; Hafiza Madiha Butt; Sumayya Saeed; Sammer Yousuf; Fatima Z Basha
2-Azido-1-(4-methyl-phen-yl)ethanone.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 6):o1608.
2012: Sammer Yousuf; Muhammad Arshad; Hafiza Madiha Butt; Sumayya Saeed; Fatima Z Basha
2-Azido-1-(4-fluoro-phen-yl)ethanone.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 4):o1268.
2012: Aurang Zeb; Sammer Yousuf; Fatima Z Basha
2-(2-Methyl-5-nitro-1H-imidazol-1-yl)ethyl 2-bromo-benzoate.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 4):o1218.
2012: Sammer Yousuf; Aurang Zeb; Fatima Z Basha
2-(2-Methyl-5-nitro-1H-imidazol-1-yl)ethyl 4-fluoro-benzoate.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 4):o952.
2012: Sammer Yousuf; M Butt; S Fazal; M Khan; F Z Basha
5-(Prop-2-yn-yl)-5H-dibenzo[b,f]azepine.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 4):o1101.
2012: Muhammad Aslam; Shazia Yasmeen; Nighat Afza; Itrat Anis; Sammer Yousuf
{5-Chloro-2-[(4-chloro-benzyl-idene)-amino]-phen-yl}(phen-yl)methanone.
Acta crystallographica. Section E, Structure reports online 2012;68(Pt 3):o644.
2012: Naik Tameen Khan; M Ahmed Mesaik; Izhar Husain Qureshi; Samina A Sattar; Sammer Yousuf; Abdullah Mohammad Al-Majid; Null Atia-Tul-Wahab; Null Atta-Ur-Rahman; Marium Bibi; Ahmed Shukralla Khalid; M Iqbal Choudhary
Synthesis of some potent immunomodulatory and anti-inflammatory metabolites by fungal transformation of anabolic steroid oxymetholone.
Chemistry Central journal 2012;6(1):153.
2012: Salman Zafar; Abdullah M Al-Majid; Hammad A Kayani; Saifullah Khan; Sammer Yousuf; M Iqbal Choudhary
Biotransformation of oral contraceptive ethynodiol diacetate with microbial and plant cell cultures.
Chemistry Central journal 2012;6(1):109.
2011: M Iqbal Choudhary; An-Shen Lin; M Shahab Alam; Yang-Chang Wu; Sammer Yousuf; F Shaheen
Pregnenolone derivatives as potential anticancer agents.
Steroids 2011;76(14):1554-9.
2011: Ramsay S T Kamdem; Ikhlas A Khan; Bonaventure T Ngadjui; Saima Rasheed; Pascal Wafo; Sammer Yousuf; Achyut Adhikari; Zulfiqar Ali; Hoong-Kun Fun; M Iqbal Choudhary
Canarene: a triterpenoid with a unique carbon skeleton from Canarium schweinfurthii.
Organic letters 2011;13(20):5492-5.
2011: A Zeb; Sammer Yousuf
(E)-1-(3-Nitro-phen-yl)ethanone (2-methyl-phen-yl)hydrazone.
Acta crystallographica. Section E, Structure reports online 2011;67(Pt 10):o2801.
2011: Rifat Ara Jamal; Uzma Ashiq; Sammer Yousuf
(3Z)-3-Hydrazinylideneindolin-2-one.
Acta crystallographica. Section E, Structure reports online 2011;67(Pt 10):o2576.
2011: Uzma Ashiq; Rifat Ara Jamal; Sammer Yousuf
3,4,5-Trihy-droxy-benzohydrazide.
Acta crystallographica. Section E, Structure reports online 2011;67(Pt 9):o2462.
2011: Rifat Ara Jamal; Sammer Yousuf; Uzma Ashiq; Qurrat Ul Ain
3-Amino-N'-(2-oxoindolin-3-yl-idene)benzohydrazide.
Acta crystallographica. Section E, Structure reports online 2011;67(Pt 8):o2166.
2011: Sammer Yousuf; M Bibi; M Iqbal Choudhary
21-Hy-droxy-pregna-1,4-diene-3,20-dione.
Acta crystallographica. Section E, Structure reports online 2011;67(Pt 8):o2122.
2011: Syed Ghulam Musharraf; Arslan Ali; Rahat Azher Ali; Sammer Yousuf; Atta-Ur- Rahman; M Iqbal Choudhary
Analysis and development of structure-fragmentation relationships in withanolides using an electrospray ionization quadropole time-of-flight tandem mass spectrometry hybrid instrument.
Rapid communications in mass spectrometry : RCM 2011;25(1):104-14.
2010: M Iqbal Choudhary; Shabbir Hussain; Sammer Yousuf; Ahsana Dar
Chlorinated and diepoxy withanolides from Withania somnifera and their cytotoxic effects against human lung cancer cell line.
Phytochemistry 2010;71(17-18):2205-9.
2010: Sammer Yousuf; Rida Ahmed; Zulfiqar Ali; M Iqbal Choudhary; Seik Weng Ng
(20S)-20-Acet-oxy-4-pregnene-3,16-dione from Commiphora wightii.
Acta crystallographica. Section E, Structure reports online 2010;66(Pt 12):o3301.
2010: Sammer Yousuf; Salman Zafar; Muhammed Iqbal Choudhary; Seik Weng Ng
17β-Hy-droxy-17α-(hy-droxy-meth-yl)estr-4-en-3-one.
Acta crystallographica. Section E, Structure reports online 2010;66(Pt 11):o2894.
2010: Qamar Ali; Sammer Yousuf; Muhammad Raza Shah; Seik Weng Ng
tert-Butyl 2-[4-(2-{4-[(tert-butoxycar-bonyl)methoxy]-3-methylphenyl}-2-propyl)-2-methylphenoxy]acetate.
Acta crystallographica. Section E, Structure reports online 2010;66(Pt 7):o1750.
2010: Qamar Ali; Sammer Yousuf; Muhammad Raza Shah; Seik Weng Ng
Di-tert-butyl 2,2'-[(biphenyl-4,4'-diyl)-dioxy]diacetate.
Acta crystallographica. Section E, Structure reports online 2010;66(Pt 7):o1739.
2010: Kiramat Shah; Sammer Yousuf; Muhammad Raza Shah; Seik Weng Ng
Di-tert-butyl 2,2'-[9H-fluorene-9,9-diylbis(p-phenyl-ene-oxy)]diacetate.
Acta crystallographica. Section E, Structure reports online 2010;66(Pt 7):o1705.
2010: Yousaf Ali; Sammer Yousuf; Nighat Afza; Yu Peng; Mahboob Ali Kalhoro
{2-[(Benzo-yloxy)meth-yl]-1-oxo-3H-pyrrolizin-2-yl}methyl benzoate.
Acta crystallographica. Section E, Structure reports online 2010;67(Pt 1):o172-3.
2010: Sammer Yousuf; M Iqbal Choudhary; Atta-ur Rahman
Separation of phenylpropanoids and evaluation of their antioxidant activity.
Methods in molecular biology (Clifton, N.J.) 2010;594():357-77.
2009: Uzma Ashiq; Rifat Ara Jamal; Muhammad Nawaz Tahir; Sammer Yousuf; Islam Ullah Khan
4-Methoxy-benzohydrazide.
Acta crystallographica. Section E, Structure reports online 2009;65(Pt 7):o1551.
2008: Bohari M Yamin; Hidayah Deris; Zaw Myint Malik; Sammer Yousuf
N-(Biphenyl-4-ylcarbon-yl)-N'-(2-pyridylmeth-yl)thio-urea.
Acta crystallographica. Section E, Structure reports online 2008;64(Pt 2):o360.
2007: M Iqbal Choudhary; Sammer Yousuf; Shakil Ahmed
New leishmanicidal physalins from Physalis minima.
Natural product research 2007;21(10):877-83.
2006: M Iqbal Choudhary; Sammer Yousuf; Syed Adnan Ali Shah; Shakil Ahmed
Biotransformation of physalin H and leishmanicidal activity of its transformed products.
Chemical & pharmaceutical bulletin 2006;54(7):927-30.
2005: M Iqbal Choudhary; Sarfraz Ahmad Nawaz; Zaheer ul-Haq; Muhammad Arif Lodhi; Muhammad Nabeel Ghayur; Saima Jalil; Naheed Riaz; Sammer Yousuf; Abdul Malik; Anwarul Hassan Gilani; Atta ur-Rahman
Withanolides, a new class of natural cholinesterase inhibitors with calcium antagonistic properties.
Biochemical and biophysical research communications 2005;334(1):276-87.
2004: M Iqbal Choudhary; Sammer Yousuf; Sarfraz Ahmad Nawaz; Shakil Ahmed
Cholinesterase inhibiting withanolides from Withania somnifera.
Chemical & pharmaceutical bulletin 2004;52(11):1358-61.