172483-26-0

Upstream product

• 2635-13-4 1,2-(methylenedioxy)-4-bromobenzene 
• 160309-18-2 (1R,4R,5S,6R)-4,5-(isopropylidenedioxy)-7-(4'-methylphenylsulfonyl)-7-azabicyclo<4.1.0>hept-2-ene 
• 183902-27-4 (3aS,4S,5R,7aS)-5-Azido-7-bromo-2,2-dimethyl-3a,4,5,7a-tetrahydro-benzo[1,3]dioxol-4-ol 
• 183674-17-1 (1R,2S,5S,6R)-3,6-dibromo-1,2-O-isopropylidenecyclohex-3-ene-1,2,5-triol 
• 163082-04-0 (1R,4S,5S,6R)-3-bromo-4,5-(isopropylidenedioxy)-7-(4'-methylphenylsulfonyl)-7-azabicyclo<4.1.0>hept-2-ene 
• 130669-75-9 (3aS,7aS)-4-bromo-2,2-dimethyl-3a,7a-dihydro-1,3-benzodioxole 
• 67451-62-1 cis-(1S,2S)-1,2-dihydroxy-3-bromocyclohexa-3,5-diene 

Downstream Products

• 172483-27-1 N-[(1R,2R,5R,6S)-2-(1,3-benzodioxol-5-yl)-5,6-(isopropylidenedioxy)cyclohex-3-en-1-yl]-N-(methoxycarbonyl)-4-methylbenzenesulfonamide 
• 460731-73-1 N-[(1R,2R,3S,4S,5S,6S)-2-(1,3-benzodioxol-5-yl)-3,4-dihydroxy-5,6-(isopropylidenedioxy)cyclohex-1-yl]-4-methylbenzenesulfonamide 
• 172483-32-8 Acetic acid (1R,2S,3S,4S,5R,6R)-2,3,4-triacetoxy-6-benzo[1,3]dioxol-5-yl-5-methoxycarbonylamino-cyclohexyl ester 
• 172483-31-7 ((1R,2R,3R,4S,5S,6S)-2-Benzo[1,3]dioxol-5-yl-3,4,5,6-tetrahydroxy-cyclohexyl)-carbamic acid methyl ester 
• 172483-29-3 ((1R,2R,5R,6S)-2-Benzo[1,3]dioxol-5-yl-5,6-dihydroxy-cyclohex-3-enyl)-carbamic acid methyl ester 
• 460731-75-3 N-[(1R,2R)-2-(1,3-benzodioxol-5-yl)-3-hydroxy-1-(hydroxymethyl)propyl]-4-methylbenzenesulfonamide 

Relevant academic research and scientific papers

Total synthesis and biological evaluation of Amaryllidaceae alkaloids: narciclasine, ent-7-deoxypancratistatin, regioisomer of 7-deoxypancratistatin, 10b-epi-deoxypancratistatin, and truncated derivatives.

Biocatalytic approaches have yielded efficient total syntheses of the major Amaryllidaceae alkaloids, all based on the key enzymatic dioxygenation of suitable aromatic precursors. This paper discusses the logic of general synthetic design for lycoricidine, narciclasine, pancratistatin, and 7-deoxypancratistatin. Experimental details are provided for the recently accomplished syntheses of narciclasine, ent-7-deoxypancratistatin, and 10b-epi-deoxypancratistatin via a new and selective opening of a cyclic sulfate over aziridines followed by aza-Payne rearrangement. The structural core of 7-deoxypancratistatin has also been degraded to a series of intermediates in which the amino inositol unit is cleaved and deoxygenated in a homologous fashion. These truncated derivatives and the compounds from the synthesis of the unnatural derivatives have been tested against six important human cancer cell lines in an effort to further develop the understanding of the mode of action for the most active congener in this group, pancratistatin. The results of the biological activity testing as well as experimental, spectral, and analytical data are provided in this manuscript for all relevant compounds.

Toluene dioxygenase-mediated cis-dihydroxylation of aromatics in enantioselective synthesis. Asymmetric total syntheses of pancratistatin and 7-deoxypancratistatin, promising antitumor agents

Whole-cell biooxidation of bromobenzene with Pseudomonas putida 39D or the recombinant Escherichia coli JM109 (pDTG601) yields (1S,2S)-3-bromocyclohexa-3,5-diene-1,2-diol (9a), which is protected as the acetonide and converted to vinylaziridines 7, 15a, 6