131938-98-2

Upstream product

• 133725-55-0 (2S,3S)-5-methyl-3-(1-tosylindol-3-yl)cyclohex-4-ene-1,2-dicarboxylic acid anhydride 

Downstream Products

• 131939-05-4 methyl 5-benzyl-9-methyl-6-oxo-5,6,6aβ,7β,10aβ-hexahydroindeno<2,1-b>indole-7-carboxylate 
• 131939-03-2 (1RS,2SR,3SR)-1-methyl hydrogen 3-(1'-benzylindol-3'-yl)-5-methylcyclohex-4-ene-1,2-dicarboxylate 
• 131939-01-0 (3aR,4R,7aS)-4-(1-Benzyl-1H-indol-3-yl)-6-methyl-3a,4,7,7a-tetrahydro-isobenzofuran-1,3-dione 
• 131939-00-9 (1RS,2SR,3SR)-2-methyl hydrogen 3-(indol-3'-yl)-5-methyl-cyclohex-4-ene-1,2-dicarboxylate 

Relevant academic research and scientific papers

Polyphosphate Ester-catalysed Cyclodehydration of Monoesters of N-Substituted 3-(Indol-3'-yl)-5-methylcyclohex-4-ene-1,2-dicarboxylic Acids; Stereoselective Synthesis of Methyl 9-Methyl-6-oxo-5-tosyl-5,6,6aβ,7β,8,10aβ-hexahydroindenoindole-7α-carboxylate. X-Ray Molecular St...

The effect of the N-substituents on the polyphosphate ester-(PPE)-catalysed cyclodehydration of a monoester of N-substituted 5-methyl-3-(indol-3'-yl)cyclohex-4-ene-1,2-dicarboxylic acids (41) is presented.Stereoselective synthesis of methyl 9-methyl-6-oxo-5-tosyl-5,6,6aβ,7β,8,10aβ-hexahydroindenoindole-7α-carboxylate (2), the key synthetic intermediate for C(7)-functionalized antifertility agent yuehchukene (YCK) (1) analogues, is dexcribed.