Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Mashooda Hasan"'
Publikováno v:
Acta Crystallographica Section E, Vol 64, Iss 2, Pp o361-o361 (2008)
The title compound, C16H20N2O2, was synthesized from (S)-tryptophan methyl ester hydrochloride and butyraldehyde. The absolute configuration 9S,10S was assigned on the basis of the unchanging chirality of the C9 centre. The NH group of the indole rin
Externí odkaz:
https://doaj.org/article/83dd699310e44a1c868a897bf15389e2
Autor:
Gennaro Pescitelli, Sándor Antus, Tibor Kurtán, Ágnes Kenéz, Naeema Khan, Helmut Duddeck, Khalid Mohammed Khan, Samina Alam, Naghmana Rashid, Mashooda Hasan
Publikováno v:
Chirality. 24:789-795
The diastereoselective synthesis of optically active 1,3-disubstituted tetrahydro-β-carbolines using polar protic Pictet–Spengler cyclization of (S)-tryptophan methyl ester with five aldehydes RCHO (R═CH3, C2H5, C3H7, C4H9, and C6H5) was studied
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::227170e5577988effa895173c5f8057d
https://doi.org/10.1002/chir.22070
https://doi.org/10.1002/chir.22070
Autor:
Eugen J. Verspohl, Abdul Waheed, Mashooda Hasan, Dadu Khan Burdi, Naeema Khan, Rizwana Aleem Qureshi, Zakir Hussain
Publikováno v:
Phytotherapy Research. 18:73-77
In vitro testing of the extracts of medicinal plants collected from Islamabad and the Murree region on insulin secretagogue activity was carried out. Dried ethanol extracts of all plants (ZH1-ZH19) were dissolved in ethanol and DMSO, and tested at va
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::98f0c6d153c3eaa79bb8b77575528419
https://doi.org/10.1002/ptr.1372
https://doi.org/10.1002/ptr.1372
Autor:
Zahida Maqbool, Mashooda Hasan, Kevin T. Pott, Abdul Malik, Tanveer Ahmad Nizami, Wolfgang Voelter
Publikováno v:
Zeitschrift für Naturforschung B. 52:1383-1392
A convenient pathway to a variety of β-and α-C-nucleosides has been developed by utilizing 1,3-dipolar cycloaddition reactions of various exocyclic and endocyclic heterocyclic ylides with β (5a) and α (5b) anomers of ethyl 3-(2′,3′-O-isopropy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b0f96b9ccb769f181a0de52dd9888d1
https://doi.org/10.1515/znb-1997-1117
https://doi.org/10.1515/znb-1997-1117
Autor:
Kevin T. Pott, Zahida Maqbool, Abdul Malik, Mashooda Hasan, Wolfgang Voelter, Tanveer Ahmad Nizami
Publikováno v:
Zeitschrift für Naturforschung B. 52:1393-1400
1,3-Dipolar cycloaddition of dipolarophiles (1) and (2) with endocyclic heterocyclic azomethine ylides (4), (14) and (24), prepared in situ, leads to the protected β-and α-C-nucleo-sides (7), (8), (17), (18), (27) and (28), respectively. These, on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1bf19bd83dc361cf48574f83053fe2a9
https://doi.org/10.1515/znb-1997-1118
https://doi.org/10.1515/znb-1997-1118
Autor:
Rahman M. Hafizur, Bina S. Siddiqui, Iffat Mehmood, Zabta Khan Shinwari, Mashooda Hasan, Abdul Hameed, Farah Mairaj
Publikováno v:
Journal of ethnopharmacology. 152(3)
Ethnopharmacological relevance Bergenia himalaica Boriss is mainly distributed in the temperate Himalayas between altitudes of 900 and 3000 m ranging from the southeastern regions in central Asia and northern regions in South Asia. The plant has a lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8016d4616fa0b51e5154215d5d5bce7
https://pubmed.ncbi.nlm.nih.gov/24534525
https://pubmed.ncbi.nlm.nih.gov/24534525
Autor:
Jodwiga Frelek, Farnaz Malik, Günther Snatzke, Wolfgang Voelter, Mashooda Hasan, Shahnaz Perveen, Khalid Mohammed Khan
Publikováno v:
Zeitschrift für Naturforschung B. 51:588-598
From thirty three new optically active 1,5-benzodiazepine derivatives the UV and CD data are reported and the bands discussed related to corresponding electronic transitions respectively stereochemical features.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba33c4bba0c6f1909dc0e995f5e064ed
https://doi.org/10.1515/znb-1996-0425
https://doi.org/10.1515/znb-1996-0425
Autor:
Günther Snatzke, Shahnaz Perveen, Mashooda Hasan, Khalid Mohammed Khan, Farnaz Malik, Wolfgang Voelter
Publikováno v:
Zeitschrift für Naturforschung B. 50:1869-1882
From forty one chiral benzodiazepin-2-ones the UV and CD data are reported and the bands discussed with respect to corresponding electronic transitions respectively stereochemical features.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3011361dd0525336c024602326e761ee
https://doi.org/10.1515/znb-1995-1214
https://doi.org/10.1515/znb-1995-1214
Autor:
Günther Snatzke, Wolfgang Voelter, Helmut Duddeck, Shahnaz Perveen, Mashooda Hasan, Farnaz Malik, Khalid Mohammed Khan
Publikováno v:
Liebigs Annalen. 1995:1861-1869
A route to optically active variously substituted 4-methyl- and 4-methyl-7-substituted 1,3,4,5-tetrahydro-2H-1,5-benzo-diazepin-2-ones as analogues of commercially available Lofendazam (7-chloro-5-phenyl-1,3,4,5-tetrahydro-2H-1,5-benzodiazepin-2-one,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a04c84e260e9ec797aa60da2a462182
https://doi.org/10.1002/jlac.1995199510261
https://doi.org/10.1002/jlac.1995199510261
Autor:
Khalid Mohammed Khan, Wolfgang Voelter, Naghmana Rashid, Shahnaz Perveen, Mashooda Hasan, Günter Snatzke, Helmut Duddeck
Publikováno v:
Liebigs Annalen. 1995:1871-1876
The syntheses of 5α- and 5β-cholest-3-eno[4,3-d]pyrimidines (7) and (7′) could be achieved by using the hydroxymethylene derivative of cholestan-4-one (5) prepared from cholesterol (1). Their 2′-derivatives 7a-7d and 7′a-7′c were also synth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d29080f62e05df488f5279e9b64b4a1d
https://doi.org/10.1002/jlac.1995199510262
https://doi.org/10.1002/jlac.1995199510262