Percy Lavon Julian (April 11, 1899 – April 19, 1975) was an African American research chemist and a pioneer in the chemical synthesis of medicinal drugs from plants. He was the first to synthesize the natural product physostigmine; and was an African American pioneer in the industrial large-scale chemical synthesis of the human hormones, steroids, progesterone, and testosterone, from plant sterols such as stigmasterol and sitosterol.
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- Percy Lavon Julian (April 11, 1899 – April 19, 1975) was an African American research chemist and a pioneer in the chemical synthesis of medicinal drugs from plants. He was the first to synthesize the natural product physostigmine; and was an African American pioneer in the industrial large-scale chemical synthesis of the human hormones, steroids, progesterone, and testosterone, from plant sterols such as stigmasterol and sitosterol. His work would lay the foundation for the steroid drug industry's production of cortisone, other corticosteroids, and birth control pills. He later started his own company to synthesize steroid intermediates from the Mexican wild yam. His work helped reduce the cost of steroid intermediates to large multinational pharmaceutical companies. During his lifetime he received more than 130 chemical patents. Julian was one of the first African Americans to receive a doctorate in chemistry. He was the first African-American chemist inducted into the National Academy of Sciences, and the second African-American scientist inducted from any field.
- Percy Lavon Julian war ein afroamerikanischer Chemiker und Bürgerrechtler. Als Chemiker erwarb er sich große Verdienste auf dem Gebiet der Naturstoffchemie. So gelang ihm und seiner Forschungsgruppe 1935, den raren Wirkstoff Physostigmin, ein Antidot des Hyoscyamins, synthetisch herzustellen. Diese chemische Verbindung wurde damals zur medizinischen Behandlung von grünem Star eingesetzt und konnte zu diesem Zeitpunkt nur aus der Calabar-Bohne gewonnen werden. 1949 waren seine Bestrebungen erfolgreich, das Steroid Hydrocortison synthetisch herzustellen.
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- Percy Lavon Julian, Jr. (1940-2008) and Faith Julian (1944- )
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- Elizabeth Lena Adams (1878–?) and James Sumner Julian
(1871–1951)
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- Pharmacy and Pharmacology
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- Percy Lavon Julian (April 11, 1899 – April 19, 1975) was an African American research chemist and a pioneer in the chemical synthesis of medicinal drugs from plants. He was the first to synthesize the natural product physostigmine; and was an African American pioneer in the industrial large-scale chemical synthesis of the human hormones, steroids, progesterone, and testosterone, from plant sterols such as stigmasterol and sitosterol.
- Percy Lavon Julian war ein afroamerikanischer Chemiker und Bürgerrechtler. Als Chemiker erwarb er sich große Verdienste auf dem Gebiet der Naturstoffchemie. So gelang ihm und seiner Forschungsgruppe 1935, den raren Wirkstoff Physostigmin, ein Antidot des Hyoscyamins, synthetisch herzustellen. Diese chemische Verbindung wurde damals zur medizinischen Behandlung von grünem Star eingesetzt und konnte zu diesem Zeitpunkt nur aus der Calabar-Bohne gewonnen werden.
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- Percy Lavon Julian
- Percy Lavon Julian
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