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Back TG, Brunner K, Krishna MV, Lai EKY. 1989. A selenosulfonation-based approach to (22S,23E)-6b-methoxy-3a,5-cyclo-5a-ergost-23-en-22-ol, a key intermediate to brassinolide synthesis. Canadian Journal of Chemistry 67: 1032-1037

Cerny V. 1989. An alternative route to 2a,3a-diols from 2,3-unsaturated 5a-steroids avoiding the use of osmium tetraoxide. Collection of Czechoslowak Chemical Communications 54: 2211-2217

Eun JS, Kuraishi S, Sakurai N. 1989. Changes in levels of auxin and abscisic acid and the evolution of ethylene in squash hypocotyls after treatment with brassinolide. Plant and Cell Physiology 30: 807-810

Fuendjiep V, Charles G, Chiriqui D. 1989. Hemisynthèse et activité physiologique des méthyl-28 brassinolides 22R,23S et 22S,23R. Bulletin de la Société Chimique de France 711-715

Gamoh K, Takatsuto S. 1989. A boronic acid-derivative as a highly sensitive fluorescence derivatization reagent for brassinosteroids in liquid-chromatography. Analytica Chimica Acta 222: 201-204

Gamoh K, Omote K, Okamoto N, Takatsuto S. 1989. High-performance liquid-chromatography of brassinosteroids in plants with derivatization using 9-phenanthreneboronic acid. Journal of Chromatography 469: 424-428

Kametani T, Keino K, Kigawa M, Tsubuki M, Honda T. 1989. Stereocontrolled synthesis of the brassinolide side chain via a pyranone derivative. Tetrahedron Letters 30: 3141-3142

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Neeland EG, Towers GHN. 1989. The synthesis of a 3,5-cyclosteroidal aldehyde from canola oil distillates. Synthetic Communications 19: 2603-2611

Park KH, Saimoto H, Nakagawa S, Sakurai A, Yokota T, N. Takahashi & K. Syono. 1989. Occurrence of brassinolide and castasterone in crown-gall cells of Catharantus roseus. Agricultural and Biological Chemistry 53: 805-811**

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Shan ZW, Jiang B, Pan XF. 1989. A novel synthesis of brassinolide and related-compounds. Journal of the Chemical Society, Chemical Communications, 612-614**

S. Takatsuto S, T. Yokota T, K. Omote K, K. Gamoh K, & N. Takahashi N. 1989. Identification of brassinolide, castasterone and norcastasterone (brassinone) in sunflower (Helianthus annuus L.) pollen. Agricultural and Biological Chemistry 53: 2177-2189**

Takematsu T, Takeuchi Y. 1989. Effects of brassinosteroids on growth and yields of crops. Proceedings of the Japan Academy Series B, Physical and Biological Sciences, 65: 149-152**

Wang YQ, Zhao YJ. 1989. Relationship between structure and biological activity of brassinolide analogues. Acta Phytophysiologica Sinica 15: 18-23

Zhou WS. 1989. The synthesis of brassinosteroid. Pure and Applied Chemistry 61: 431-434**

Zhou WS, Ge CS. 1989. A novel method for construction of side-chain of brassinosteroids. Science in China Series B, Chemistry, 32: 1290-1299

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(Revised November 2011)