99945-49-0

Upstream product

• 85-44-9 phthalic anhydride 
• 112608-06-7 (1S,2S,3S)-4-Benzyloxy-2,3-bis-methoxymethoxy-1-(4-methoxy-phenyl)-butylamine 
• 136918-14-4 phthalimide 
• 99878-64-5 (1R,2S,3S)-4-(benzyloxy)-2,3-bis<(methoxymethyl)oxy>-1-(p-methoxyphenyl)-1-butanol 
• 100-44-7 benzyl chloride 
• 99891-37-9 (-)-(2S,3S)-4-benzyloxy-2,3-bis(methoxymethoxy)butane-1-ol 
• 99891-36-8 (-)-(2S,3S)-2,3-bis(methoxymethoxy)butane-1,4-diol 
• 112608-04-5 (2S,3S)-4-Benzyloxy-2,3-bis-methoxymethoxy-1-(4-methoxy-phenyl)-butan-1-one oxime 
• 99878-63-4 4-O-benzyl-2,3-O-bis(methoxymethyl)-L-threose 
• 104-92-7 1-bromo-4-methoxy-benzene 
• 13139-86-1 4-methoxyphenyl magnesium bromide 

Downstream Products

• 100100-39-8 (+)-codonopsinine 
• 108210-85-1 (2S,3S,4S,5R)-3,4-dihydroxy-2-(p-methoxyphenyl)-1,5-dimethylpyrrolidine (codonopsinine stereoisomer 1d) 
• 99891-38-0 (2S,3S,4S,5R)-3,4-Bis-methoxymethoxy-2-(4-methoxy-phenyl)-5-methyl-pyrrolidine 
• 108082-48-0 (2S,3S,4S,5S)-3,4-bis<(methoxymethyl)oxy>-2-(p-methoxyphenyl)-5-methylpyrrolidine 
• 108082-56-0 (2S,3S,4S,5R)-3,4-bis<(methoxymethyl)oxy>-2-(p-methoxyphenyl)-1,5-dimethylpyrrolidine 
• 108082-45-7 (2S,3S,4S,5S)-3,4-bis<(methoxymethyl)oxy>-5-(p-methoxyphenyl)-5-(1,3-dioxo-2-azidan-2-yl)-2-pentanol 
• 108082-44-6 (2R,3S,4S,5S)-3,4-bis<(methoxymethyl)oxy>-5-(p-methoxyphenyl)-5-(1,3-dioxo-2-azidan-2-yl)-2-pentanol 
• 108082-51-5 (3R,4S,5S)-3,4-bis<(methoxymethyl)oxy>-5-(p-methoxyphenyl)-5-(1,3-dioxo-2-azindan-2-yl)pentan-2-one 
• 99878-67-8 (2R,3S,4S)-2,3-bis<(methoxymethyl)oxy>-4-(p-methoxyphenyl)-4-(1,3-dioxo-2-azindan-2-yl)butanal 
• 108394-50-9 [(1S,2S,3S,4S)-4-Hydroxy-2,3-bis-methoxymethoxy-1-(4-methoxy-phenyl)-pentyl]-carbamic acid benzyl ester 
• 112722-07-3 4-Nitro-benzoic acid (2S,3S,4S)-4-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-2,3-dihydroxy-4-(4-methoxy-phenyl)-butyl ester 
• 108082-47-9 (1S,2S,3R,4R)-1-<<(benzyloxy)carbonyl>amino>-2,3-bis<(methoxymethyl)oxy>-1-(p-methoxyphenyl)-4-<(methylsulfonyl)oxy>pentane 
• 108082-55-9 (1S,2S,3R,4S)-1-<<(benzyloxy)carbonyl>amino>-2,3-bis<(methoxymethyl)oxy>-1-(p-methoxyphenyl)-4-<(methylsulfonyl)oxy>pentane 
• 108082-46-8 (2R,3S,4S,5S)-5-<<(benzyloxy)carbonyl>amino>-3,4-bis<(methoxymethyl)oxy>-5-(p-methoxyphenyl)-2-pentanol 

Relevant academic research and scientific papers

STEREOCHEMICAL REVISION AND ABSOLUTE CONFIGURATION OF CODONOPSININE

The stereostructure of codonopsinine has been revised from 1 to 7 based on chemical correlation studies, NOE expereriments, and X-ray crystallographic analysis.This establishes the absolute configuration of natural (-)-codonopsinine as 2R, 3R, 4R, 5R.