Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Naeema Khan"'
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 4, Pp o913-o913 (2010)
The title compound, C10H11NO4, was formed from 4,1-benzoxazepine-2,5(1H,3H)-dione and ammonia gas. Intramolecular hydrogen bonding is present between the amide N—H group and the carbonyl O atom of the ester group. The crystal structure features int
Externí odkaz:
https://doaj.org/article/3b03ba0dfad4494e9845b1243e8f2d5d
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:
Ismat Naeem, Sarfraz Ahmad Nawaz, Naeema Khan, M. Riaz Khan, M. Iqbal Choudhary, Atta-ur-Rahman, Zaheer-ul-Haq, Fareeda Feroz
Publikováno v:
Steroids. 69:735-741
Five new steroidal alkaloids, 5,14-dehydro-N(a)-demethylsaracodine [3beta-N(a)-methyl-20S-N(b)-acetyl-N(b)-methylamino-pregn-5,14-diene] (1), 14-dehydro-N(a)-demethylsaracodine [3beta-N(a)-methyl-20S-N(b)-acetyl-N(b)-methylamino-5alpha-pregn-14-ene]
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7c45b5ae9fcddf4059e99431fd1e11e
https://doi.org/10.1016/j.steroids.2004.03.016
https://doi.org/10.1016/j.steroids.2004.03.016
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
Publikováno v:
Phytochemistry. 43:903-906
A new alkaloid, saracocinaene (3 α -dimethylamino-20 α - N -methyl- N -acylamino-pregna-5,16-diene), and two known alkaloids, saracodine and pachyaximine-A, were isolated from Sarcococca saligna . The structures of these steroidal bases were establ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8149e507ce8f19e32ed598267be9c4f7
https://doi.org/10.1016/0031-9422(96)00334-2
https://doi.org/10.1016/0031-9422(96)00334-2
Autor:
Naghmana, Rashid, Samina, Alam, Mashooda, Hasan, Naeema, Khan, Khalid M, Khan, Helmut, Duddeck, Gennaro, Pescitelli, Agnes, Kenéz, Sándor, Antus, Tibor, Kurtán
Publikováno v:
Chirality. 24(10)
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═CH(3), C(2)H(5), C(3)H(7), C(4)H(9), and C(6)H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::4b9a45047f246c6259093eafe1e277c2
https://pubmed.ncbi.nlm.nih.gov/22760664
https://pubmed.ncbi.nlm.nih.gov/22760664
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 4, Pp o913-o913 (2010)
Acta Crystallographica Section E: Structure Reports
Acta Crystallographica Section E: Structure Reports
The title compound, C10H11NO4, was formed from 4,1-benzoxazepine-2,5(1H,3H)-dione and ammonia gas. Intramolecular hydrogen bonding is present between the amide N—H group and the carbonyl O atom of the ester group. The crystal structure features int
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32f7cc8d44ec32da17458776a8ab36ca
http://scripts.iucr.org/cgi-bin/paper?S1600536810009451
http://scripts.iucr.org/cgi-bin/paper?S1600536810009451
Publikováno v:
Acta Crystallographica Section E: Structure Reports
The title compound, C(16)H(20)N(2)O(2), was synthesized from (S)-tryptophan methyl ester hydro-chloride 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 i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::daad63c7364aedb2ba2dd084f4df9fd4
https://pubmed.ncbi.nlm.nih.gov/21201393
https://pubmed.ncbi.nlm.nih.gov/21201393
Publikováno v:
Acta Crystallographica Section E Structure Reports Online. 63:o871-o872
The title compound, C14H16N2O2, was obtained from the reaction between S-tryptophan methyl ester hydrochloride and acetaldehyde. The molecule adopts a trans configuration, with the methyl and metho ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1692fd115d8e3e5425a2613f2db81ba2
https://doi.org/10.1107/s1600536807002577
https://doi.org/10.1107/s1600536807002577