215031-75-7

Upstream product

• 98-59-9 p-toluenesulfonyl chloride 
• 53139-42-7 stigmasteryl tosylate 
• 83-48-7 Stigmasterol 
• 281659-16-3 (22E)-3β-tosyloxystigmast-22-ene-5α,6β-diol 
• 215031-74-6 (22E)-5,6-epoxy-3β-tosyloxystigmast-22-ene 

Downstream Products

• 188127-65-3 (22R,23R,24S)-3β-bromo-5α,22,23-trihydroxystigmastan-6-one 
• 188127-65-3 (22S,23S)-3β-bromo-5α,22,23-trihydroxystigmastan-6-one 

Relevant academic research and scientific papers

Synthesis and bioactivity evaluation of brassinosteroid analogs

Four new analogs of 28-homocastasterone have been synthesized and completely characterized for the first time from stigmasterol. (22R,23R,24S)- 3β-acetoxy-22,23-dihydroxy-5α-stigmastan-6-one (17), (22R,23R,24S)-3β- bromo-22,23-dihydroxy-5α-stigmastan-6-on

New synthetic brassinosteroids: A 5α-hydroxy-6-ketone analog with strong plant growth promoting activity

Five 5-hydroxy-6-ketone brassinosteroid analogs have been synthesized from stigmasterol (I) and their plant growth promoting activity has been evaluated using rice lamina inclination test. 3 has elicited high activity as plant growth regulator.