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J.S.K. Ayim

Observed names: Ayim, John S.K., J S Ayim, J. S. K. Ayim, J.S.K. Ayim., John S. K. Ayim, John S.K. Ayim, John Sefah K. Ayim
OpenAlex ID: A5032515336
Constituents of West African Medicinal Plants XX: Quindoline from Cryptolepis sanguinolenta
1978 · Daniel Dwuma-Badu, John S.K. Ayim, et al. · Journal of Pharmaceutical Sciences · 102
Antimicrobial properties of some West African medicinal plants iv. Antimicrobial activity of xylopic acid and other constituente of the fruits of Xylopia aethiopica (Annonaceae).
1978 · K Boakye-Yiadom, N I Fiagbe, et al. · PubMed · 44
Alkaloids of Cissampelos pareira
1975 · D. Dwuma-Badu, J.S.K. Ayim, et al. · Phytochemistry · 39
Hydroxyphenylalkanones from Amomum melegueta
1975 · A.N. Tackie, D. Dwuma-Badu, et al. · Phytochemistry · 34
Additional alkaloids of Triclisia patens and Triclisia subcordata
1975 · D. Dwuma-Badu, J.S.K. Ayim, et al. · Phytochemistry · 22
Constituents of West African medicinal plants. XIV. Constituents of Piper guineense Schum, and Thonn.
1976 · D Dwuma-Badu, J S Ayim, et al. · PubMed · 19
Constituents of West African Medicinal Plants. IX. Dihydrocubebin, a new lignan from Piper guineense.
1976 · D Dwuma-Badu, J S Ayim, et al. · PubMed · 19
Constituents of West African Medicinal Plants. XXVII. Alkaloids of Rhigiocarya racemifera and Stephania dinklagei
1980 · D. Dwuma-Badu, J. S. K. Ayim, et al. · Journal of Natural Products · 18
N-Isobutyloctadeca-trans-2-trans-4-dienamide: A new constituent of Piper guineense
1975 · A.N. Tackie, D. Dwuma-Badu, et al. · Phytochemistry · 16
Trigilletimine: A newBisbenzylisoquinoline alkaloid fromTriclisia species
1975 · D. Dwuma-Badu, J. S. K. Ayim, et al. · Cellular and Molecular Life Sciences · 15
Constituents of West African medicinal plants. VII: Alkaloids of Tiliacora dinklagei.
1975 · A N Tackie, D Dwuma-Badu, et al. · PubMed · 13
Determination of ampicillin in the presence of cloxacillin
1992 · A.O. Akanni, J.S.K. Ayim · Journal of Pharmaceutical and Biomedical Analysis · 9
Constituents of West African Medicinal Plants XXV. Isolation of Oblongine from Tiliacora dinklagei and the Synthesis of Oblongine and Related Benzylisoquinoline Alkaloids
1983 · D. Dwuma-Badu, J. S. K. Ayim, et al. · Journal of Natural Products · 9
Constituents of West African medicinal plants. XXI. Tiliafunimine, a new imino bisbenzylisoquinoline alkaloid from Tiliacora funifera.
1978 · J S Ayim, D Dwuma Badu, et al. · PubMed · 9
Simultaneous Quantification of Acetaminophen, Caffeine, and Ibuprofen in Fixed Dose Combination Drug Using HPLC with UV Detection
2019 · Emmanuel K. Darkwah, Christopher K. Acquah, et al. · Journal of Advances in Medical and Pharmaceutical Sciences · 8
A Cytotoxic Diterpenoid from Croton Membranaceus , the Major Constituent of Anticancer Herbal Formulations Used in Ghana
2008 · Marcel T. Bayor, John S. K. Ayim, et al. · Natural Product Communications · 8
DIOXINS/*ISOLof West African medicinal plants. XV. Dinklacorine, a new biphenyl dibenzodioxin alkaloid from Tiliacora dinklagei.
1976 · D Dwuma-Badu, J S Ayim, et al. · PubMed · 8
Δαβ-dihydropiperlonguminine, a new amide from Piper guineense☆
1976 · D. Dwuma-Badu, J.S.K. Ayim., et al. · Phytochemistry · 8
Alkaloids of Kolobopetalum auriculatum
1980 · D. Dwuma-Badu, J.S.K. Ayim, et al. · Phytochemistry · 3
Gilletine, a New Bisbenzylisoquinoline Alkaloid from Triclisia gilletii
1978 · Paul L. Schiff, Jr., Daniel Dwuma-Badu, et al. · Heterocycles · 3
Zinc and copper(II) ion catalyses of penicillins in alcohols.
1972 · J S Ayim, H D Rapson · PubMed · 3
Some problems associated with the quantitative analysis of crude hydroxy-anthraquinone drugs
1983 · Seth Y.S. Ablordeppey, John S.K. Ayim · TrAC Trends in Analytical Chemistry
Constituents of West African Medical Plants, Constituents of Piper Guieense Schum and Thonn
1978 · B D Dwuma, J.S.K. Ayim, et al.
Works count: 24
Citation count: 409
H-index: 11
I10-index: 11
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