128573-78-4

Upstream product

• 113119-34-9 (S)-3-(4-Hydroxy-phenyl)-3-((3S,3aS,6S,6aR)-3,3a,6-trihydroxy-2-oxo-hexahydro-furo[3,2-b]furan-3-yl)-propionic acid methyl ester 

Downstream Products

• 128533-15-3 Acetic acid (Z)-3-acetoxy-1-[(2S,3S)-3-(4-acetoxy-phenyl)-5-oxo-tetrahydro-furan-2-carbonyl]-propenyl ester 

Relevant academic research and scientific papers

STRUCTURE OF SAWARANIN : A DECARBOXYLATED ASCORBIGEN IN THE HEARTWOOD OF CHAMAECYPARIS PISIFERA

The structure of sawaranin which had been isolated from the heartwood of Chamaecyparis pisifera was reexamined.The structure as a decarboxylated ascorbigen, (3S,4R,6R,7S)-5,8-epoxy-3-p-hydroxyphenyl-5,6,7-trihydroxyoctan-1,4-olide, was determined by spectral analyses of sawaranin and its derivatives and by chemical degradation of monomethylsawaranin into d-p-anisylsuccinic acid an L-threose.Further, sawaranin was synthesized by decarboxylative hydrolysis of the product of the reaction of L-ascorbic acid with methyl 3-hydroxy-3-p-hydroxyphenylpropionate.Key Word Index - Chamaecyparis pisifera; Cupressaceae; heartwood; ascorbigen; sawaranin.