108448-52-8

Upstream product

• 69739-34-0 t-butyldimethylsiyl triflate 
• 477-47-4 picropodophyllotoxin 
• 18162-48-6 tert-butyldimethylsilyl chloride 
• 518-28-5 podofilox 
• 67-56-1 methanol 
• 112711-16-7 (5R,5aR,8aR,9R)-9-((tert-butyldimethylsilyl)oxy)-5-(3,4,5-trimethoxyphenyl)-5,8,8a,9-tetrahydrofuro[3',4':6,7]naphtho[2,3-d][1,3]dioxol-6(5aH)-one 
• 32384-13-7 α-apopicropodophyllic acid 
• 477-48-5 (5aR,8aS,9R)-9-(3,4,5-trimethoxyphenyl)-5a,6,8a,9-tetrahydrofuro[3',4':6,7]naphtho[2,3-d][1,3]dioxole-5,8-dione 
• 477-52-1 beta-Apopicropodophyllin 
• 117179-02-9 (-)-3-(hydroxymethyl)picropodophyllone 
• 117097-50-4 (-)-(1R,2S,3S)-1-(3,4,5-trimethoxyphenyl)-2-(methoxycarbonyl)-3-<<(tert-butyldimethylsilyl)oxy>methyl>-6,7-(methylenedioxy)-2,3-dihydro-4(1H)-naphtalenone 
• 117097-47-9 (-)-(1R,2S)-1-(3,4,5-trimethoxyphenyl)-2-(methoxycarbonyl)-3-<<(tert-butyldimethylsilyl)oxy>methyl>-6,7-(methylenedioxy)-1,2-dihydronaphtalene 

Downstream Products

• 112711-16-7 (5R,5aR,8aR,9R)-9-((tert-butyldimethylsilyl)oxy)-5-(3,4,5-trimethoxyphenyl)-5,8,8a,9-tetrahydrofuro[3',4':6,7]naphtho[2,3-d][1,3]dioxol-6(5aH)-one 
• 303958-09-0 8-(tert-butyl-dimethyl-silanyloxy)-7-hydroxymethyl-5-(3,4,5-trimethoxy-phenyl)-5,6,7,8-tetrahydro-naphtho[2,3-d][1,3]dioxole-6-carboxylic acid methyl ester 
• 477-47-4 picropodophyllotoxin 
• 518-28-5 podofilox 
• 98369-20-1 picropodophyllin homolactone 

Relevant academic research and scientific papers

Catalytic Enantioselective Synthesis of (-)-Podophyllotoxin

The first catalytic enantioselective total synthesis of (-)-podophyllotoxin is accomplished by a challenging organocatalytic cross-aldol Heck cyclization and distal stereocontrolled transfer hydrogenation in five steps from three aldehydes. Reversal of se

USE OF CYCLOLIGNANS FOR THE TREATMENT OF TYPE 2 DIABETES AND AS CONTRACEPTIVES

There is disclosed use of certain cyclolignans for prophylaxis or treatment of diabetes mellitus type 2, nephropathy, retinopathy, macular degeneration, retinopathy of prematurity, central retinal vein occlusion, branch retinal vein occlusion, rubeotic gl

Synthesis of picropodophyllin homolactone

Based on a Wittig olefination strategy, the first synthesis of picropodophyllin homolactone 2 is described in nine steps and 30% overall yield from podophyllotoxine 1. The relative configuration of 2 was unambiguously determined using 2D NOESY NMR and a Monte Carlo search protocol. This work corrects the literature on the synthesis of 2. (C) 2000 Elsevier Science Ltd.

Asymmetric Total Synthesis of (-)-Podophyllotoxin

Using a diastereoselective addition of the appropriate aryllithium to a naphtalene-containing chiral oxazoline leads to advanced intermadiate 11 in the podophyllotoxin series.The latter is obtained in a 92:8 de.Transformation of the oxazoline moiety to the requisite lactone 18 followed by invoking the Kende route to the target gave natural (-)-podophyllotoxin in 94 percent ee.The overall yield of the sequence, accomplished in 24 steps, was 5 percent.

Studies on the Constituents of the Seeds of Hernandia ovigera L. VI. Isolation and Structural Determination of Three Lignans

Three kinds of lignans, including a new lignan, named hernolactone, were isolated from the seeds of Hernandia ovigera L. besides six previously reported lignans, desoxypodophyllotoxin (DPT), desoxypicropodophyllin, bursehernin, podorhizol, hernandin and d