"Protected areas and demographic change" (Remarks at an IUCN Workshop on Protected Areas and Demographic Change: Planning for the Future, IV World Congress on National Parks and Protected Areas Caracas Venezuela, February 10-21.

Citation:
OKOTH PROFOGENDOHASTINGW. ""Protected areas and demographic change" (Remarks at an IUCN Workshop on Protected Areas and Demographic Change: Planning for the Future, IV World Congress on National Parks and Protected Areas Caracas Venezuela, February 10-21.". In: Cent. Afri. J. Pharm.Sci. 5(3): 60-66. Cent. Afri. J. Pharm.Sci. 5(3): 60-66; 1992.

Abstract:

The identification of five novel compounds, pseudo-erythromycin A-6,9-hemiketal, 8,9-anhydro-pseudo-erythromycin A-6,9-hemiketal, 8,9-anhydro-pseudo-N-demethylerythromycin A-6,9-hemiketal, 5-O-beta-D-desosaminylerythronolide A and 15-nor-erythromycin C, in mother liquor concentrates of Streptomyces erythraeus is described. The pseudo-erythromycin derivatives are characterized by a 12-membered macrocyclic ring as a result of C13––C11 trans-lactonization. The five compounds have very little antimicrobial activity.

Notes:

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