Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Ahmed Abbaskhan"'
Autor:
Humaira Y. Gondal, Muhammad Nisar, Zain M. Cheema, Kiran Iqbal, Akhtar Munir, Sadia Zaidi, Ahmed Abbaskhan
Publikováno v:
Mini-Reviews in Organic Chemistry. 20
Alkoxmethyl heterocycles play a significant role as bioactive compounds in pharmaceutical and bifunctional ligands in synthetic organic chemistry. N-Alkoxmethylation can lead toward multipurpose mixed acetals, natural product precursors, and task-spe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98660be73fb71fd8c4478f7a7810c48c
https://doi.org/10.2174/1570193x20666230124102142
https://doi.org/10.2174/1570193x20666230124102142
Autor:
Zain Maqsood Cheema, M. I. Chaudhary, Ahmed Abbaskhan, Humaira Yasmeen Gondal, Abdul Rauf Raza
Publikováno v:
Current Organic Chemistry. 23:1738-1755
Following numerous applications of Wittig reaction now functionalized phosphonium salts are gaining attention due to their characteristic properties and diverse reactivity. This review is focused on α-alkoxyalkyl triphenylphosphonium salts: an impor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4645aaaca1f40e91e07e2c7c3d7fc7f0
https://doi.org/10.2174/1385272823666190926092242
https://doi.org/10.2174/1385272823666190926092242
Autor:
Muhammed Iqbal Choudhary, Y. Tsuda, Mohammed Nabeel Ghayur, Takuro Maruyama, Kiran Iqbal, Ahmed Abbaskhan, Zeba Parween, Anwarul Hassan Gilani, Farzana Shaheen
Publikováno v:
Phytotherapy Research. 26:783-786
In continuation of our work on Indian celery (Seseli diffusum (Roxb. ex Sm.) Santapau & Wagh; Umbelliferae), the fractionation of the 80% MeOH–H2O extract of the seeds was performed to identify the principles responsible for its folk use as an anti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31d3fcd0102ec2953ddc91ebba6b4483
https://doi.org/10.1002/ptr.3600
https://doi.org/10.1002/ptr.3600
Autor:
Samina A. Sattar, Saud Resayes, Syed Ghulam Musharraf, Ahmed Abbaskhan, M. I. Choudhary, Abdullah Mohammed Al-Majid, Saleem Jan, Zeid A. ALOthman
Publikováno v:
Planta Medica. 77:1829-1834
Three new cycloartane triterpenoids have been isolated from Astragalus bicUSPIS Fisch. Their structures were elucidated as 23(R),24(S),25( R),26(S)-16 β/23,23/26,24/25-triepoxy-26-hydroxy-9,19-cyclolanosta-3,6-dione (1), 6 α,23,24,25-tetraol-16 β-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1c2406199dcea9abab216eaf66e3dbd
https://doi.org/10.1055/s-0030-1271196
https://doi.org/10.1055/s-0030-1271196
Autor:
Samina A. Sattar, Samreen, Saleem Jan, Syed Ghulam Musharraf, Ahmed Abbaskhan, M. Iqbal Choudhary, Atta-ur-Rahman
Publikováno v:
Journal of Natural Products. 71:1557-1560
Three new cycloartane glycosides have been isolated from Astragalus bicuspis. They were identified as 6alpha-hydroxy-3-O-beta-xylopyranosyloxy-24,25,26,27-tetranor-9,19-cyclolanosta-16,23-lactone (1), 6alpha-hydroxy-23-methoxy-16beta,23(R)-epoxy-24,2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc75ca86e5aee691393b0f03149cad89
https://doi.org/10.1021/np800161j
https://doi.org/10.1021/np800161j
Publikováno v:
Chemistry & Biodiversity. 2:1401-1408
Microbial transformation of gelomulide G (3beta,6beta-diacetoxy-8beta,14beta-epoxyabiet-13(15)-en-16,12-olide, 1) was carried out. Incubation of 1 with Aspergillus niger afforded two new metabolites, 3beta,6beta-diacetoxy-8beta,14beta-dihydroxyabiet-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f937b704fa4611567d6702b0b3eeea2f
https://doi.org/10.1002/cbdv.200590112
https://doi.org/10.1002/cbdv.200590112
Autor:
Masood Parvez, Atta‐ur‐Rahman Atta‐ur‐Rahman, Ismat A. Jahan, Nilufar Nahar, M. Iqbal Choudhary, Ahmed Abbaskhan, Humaira Yasmeen Gondal
Publikováno v:
Tetrahedron. 60:7933-7941
Phytochemical investigations on the organic extracts of the leaves of Suregada multiflora have led to the isolation of ten tetracyclic diterpene lactones 1–10 , members of a rare class of abiatene diterpene lactones. Compounds 1–5 were found to b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1728736b289ef3362476b8e48224d4a2
https://doi.org/10.1016/j.tet.2004.06.047
https://doi.org/10.1016/j.tet.2004.06.047
Autor:
Ahmed Abbaskhan, Sarfraz Ahmad Nawaz, M. Iqbal Choudhary, Javid Hussain, Umar Farooq, Muhammad Athar Abbasi, Viqar Uddin Ahmad
Publikováno v:
Helvetica Chimica Acta. 87:682-689
Six diterpenoids (1–6) belonging to the clerodane and tetracyclic diterpene types were isolated from the CHCl3 extract of Ballota limbata. The structures of the new compounds 1 and 4–6 (named ballatenolide A and limbatenolides A–C, resp.) were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::097a768500983614ffa8570546598996
https://doi.org/10.1002/hlca.200490064
https://doi.org/10.1002/hlca.200490064
Autor:
M. Iqbal Choudhary, Khalid Mohammed Khan, Ahmed Abbaskhan, Mahmud Tareq Hassan Khan, Safdar Hayat, Ghulam M. Maharvi, Talat Makhmoor, Farzana Shaheen, Atta-ur-Rahman
Publikováno v:
Helvetica Chimica Acta. 86:457-464
Phytochemical investigation on the whole plant of Salsola foetida resulted in the isolation of three new phenolic compounds 1, 2, and 3, which exhibit tyrosinase inhibition with moderate antioxidant activity. Compounds 1–3 inhibited tyrosinase with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::055ffb975f380b74fa686d0bfc8d8f35
https://doi.org/10.1002/hlca.200390045
https://doi.org/10.1002/hlca.200390045
Autor:
Atta‐ur‐Rahman Atta‐ur‐Rahman, Safdar Hayat, Ahmed Abbaskhan, Khalid Mohammed Khan, Muhammad Iqbal Choudhary
Publikováno v:
ResearcherID
Two new natural products, n-butyl and isopropyl 3,5-dimethoxy-4-hydroxycinnamate were isolated from Spatoglossum variabile. Three known compounds, methyl 3,4,5-trihydroxybenzoate, 2-deoxyinosine and 9-beta-(D-ribofuranosyl)adenine were isolated for t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65fc6a72cc48609b6d21e360a66d0504
https://doi.org/10.1248/cpb.50.1297
https://doi.org/10.1248/cpb.50.1297