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	1.	Global phytochemistry: indigenous medicinal chemistry on track in southern Africa. [electronic resource] by Mulholland, Dulcie A Drewes, Siegfried E Producer: 20040708 In: Phytochemistry vol. 65 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Recent findings on natural products with erectile-dysfunction activity. [electronic resource] by Drewes, Siegfried E George, Jacob Khan, Fatima Producer: 20030520 In: Phytochemistry vol. 62 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	Antimicrobial acylphloroglucinols and dibenzyloxy flavonoids from flowers of Helichrysum gymnocomum. [electronic resource] by Drewes, Siegfried E van Vuuren, Sandy F Producer: 20080909 In: Phytochemistry vol. 69 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	4.	The chemical structures, plant origins, ethnobotany and biological activities of homoisoflavanones. [electronic resource] by du Toit, Karen Drewes, Siegfried E Bodenstein, Johannes Producer: 20100628 In: Natural product research vol. 24 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	5.	Vasodilatory and hypoglycaemic effects of two pyrano-isoflavone extractives from Eriosema kraussianum N. E. Br. [Fabaceae] rootstock in experimental rat models. [electronic resource] by Ojewole, John A O Drewes, Siegfried E Khan, Fatima Producer: 20060503 In: Phytochemistry vol. 67 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	6.	Organ-to-organ and seasonal variation in alkaloids from Crinum macowanii. [electronic resource] by Elgorashi, Esameldin E Drewes, Siegfried E Van Staden, Johannes Producer: 20021129 In: Fitoterapia vol. 73 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	7.	Total synthesis of the pyranoisoflavone kraussianone 1 and related isoflavones. [electronic resource] by Selepe, Mamoalosi A Drewes, Siegfried E van Heerden, Fanie R Producer: 20160329 In: Journal of natural products vol. 73 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	8.	Simple 1,4-benzoquinones with antibacterial activity from stems and leaves of Gunnera perpensa. [electronic resource] by Drewes, Siegfried E Khan, Fatima van Vuuren, Sandy F Viljoen, Alvaro M Producer: 20051027 In: Phytochemistry vol. 66 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	9.	Bufadienolides from bulbs of Urginea lydenburgensis (Hyacinthaceae: Urgineoideae). [electronic resource] by Crouch, Neil R du Toit, Karen Mulholland, Dulcie A Drewes, Siegfried E Producer: 20070116 In: Phytochemistry vol. 67 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	10.	Antimicrobial monomeric and dimeric diterpenes from the leaves of Helichrysum tenax var tenax. [electronic resource] by Drewes, Siegfried E Mudau, K Esther van Vuuren, Sandy F Viljoen, Alvaro M Producer: 20060719 In: Phytochemistry vol. 67 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	11.	Absolute configurations of all four stereoisomers of cryptocaryalactone and deacetyl cryptocaryalactone. [electronic resource] by Drewes, Siegfried E Horn, Marion M Ramesar, Niyum S Ferreira, Daneel Nel, Reinier J. J Hutchings, Anne Publication details: Phytochemistry Nov 1998 In: Phytochemistry vol. 49 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	12.	Pyrano-isoflavones with erectile-dysfunction activity from Eriosema kraussianum. [electronic resource] by Drewes, Siegfried E Horn, Marion M Munro, Orde Q Dhlamini, Jabu T B Meyer, J J Marion Rakuambo, N Christopher Producer: 20020912 In: Phytochemistry vol. 59 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	13.	Anti-inflammatory activity and QSAR studies of compounds isolated from Hyacinthaceae species and Tachiadenus longiflorus Griseb. (Gentianaceae). [electronic resource] by du Toit, Karen Elgorashi, Esameldin E Malan, Sarel F Drewes, Siegfried E van Staden, Johannes Crouch, Neil R Mulholland, Dulcie A Producer: 20050901 In: Bioorganic & medicinal chemistry vol. 13 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	14.	Minor pyrano-isoflavones from Eriosema kraussianum: activity-, structure-, and chemical reaction studies. [electronic resource] by Drewes, Siegfried E Horn, Marion M Khan, Fatima Munro, Orde Q Dhlamini, Jabu T B Rakuambo, Christopher Meyer, J J Marion Producer: 20041222 In: Phytochemistry vol. 65 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	15.	Venusol from Gunnera perpensa: structural and activity studies. [electronic resource] by Khan, Fatima Peter, Xolani K Mackenzie, Rod M Katsoulis, Lynn Gehring, Ronette Munro, Orde Q van Heerden, Fanie R Drewes, Siegfried E Producer: 20040712 In: Phytochemistry vol. 65 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)