7632-62-4

Upstream product

• 26409-24-5 methyl 3-benzyloxy-4,5-dimethoxybenzoate 
• 454185-93-4 1-benzyloxy-5-tert-butyldimethylsilyl-2,3-dimethoxybenzene 
• 100-39-0 benzyl bromide 
• 83011-43-2 3-hydroxy-4,5-dimethoxybenzoate 
• 1916-08-1 3-hydroxy-4,5-dimethoxybenzoic acid 
• 149-91-7 3,4,5-trihydroxybenzoic acid 
• 79831-86-0 methyl 3-(benzyloxy)-4,5-dihydroxybenzoate 
• 454186-07-3 5-tert-butyldimethylsiloxymethyl-2,3-dimethoxyphenol 
• 454185-92-3 (3-bromo-4,5-dimethoxy-benzyloxy)-tert-butyl-dimethyl-silane 
• 121-33-5 vanillin 
• 6948-30-7 5-bromoveratralaldehyde 
• 57230-04-3 3,4-dimethoxy-5-benzyloxybenzaldehyde 

Downstream Products

• 7632-64-6 3-benzyloxy-4,5-dimethoxyphenylacetonitrile 
• 1128-32-1 2,3-dimethoxy-5-methylphenol 
• 651340-08-8 3-(benzyloxy)-4,5-dimethoxybenzyl bromide 
• 925203-39-0 1-benzyloxy-2,3-dimethoxy-5-methoxymethoxymethylbenzene 
• 454185-93-4 1-benzyloxy-5-tert-butyldimethylsilyl-2,3-dimethoxybenzene 
• 925203-40-3 2,3-dimethoxy-5-methoxymethoxymethylphenol 
• 454186-07-3 5-tert-butyldimethylsiloxymethyl-2,3-dimethoxyphenol 
• 683227-19-2 2,3-dimethoxy-5-methoxymethoxymethylphenyl 6-iodo-1,3-benzodioxole-5-carboxylate 
• 683227-20-5 5-tert-butyldimethylsiloxymethyl-2,3-dimethoxyphenyl 6-iodo-1,3-benzodioxole-5-carboxylate 
• 68027-81-6 aspermutarubrol 
• 68278-87-5 cordyol D 
• 81827-49-8 violacerol-II 
• 643027-53-6 2-[3-(2,3-dimethoxy-5-methyl-phenoxy)-4,5-dimethoxy-benzyloxy]-tetrahydro-pyran 
• 1025906-30-2 3-(3-benzyloxy-4,5-dimethoxy-benzyl)-4-(4-benzyloxy-3-methoxy-benzyl)-dihydro-furan-2-one 

Relevant academic research and scientific papers

ANTHOCYANIN SYNTHESIS PROMOTER AND CHLOROPHYLL DEGRADATION PROMOTER

PROBLEM TO BE SOLVED: To provide an anthocyanin synthesis promoter and a chlorophyll degradation promoter that are safe and practicable. SOLUTION: The present invention provides an anthocyanin synthesis promoter and a chlorophyll degradation promoter comprising extract of plant belonging to Hydrocharitaceae Egeria or Elodea. The extract preferably comprises at least one of a compound of formula (I) and a compound of formula (II) as an active compound. SELECTED DRAWING: None COPYRIGHT: (C)2017,JPOandINPIT

Intramolecular biaryl coupling reaction of benzyl benzoate and phenyl benzoate derivatives, and its application to the formal synthesis of (-)-steganone

Construction of the biaryl moiety of stegane and related compounds through an intramolecular biaryl coupling reaction is described. Undesired products were obtained by the intramolecular coupling reaction of benzyl benzoates (8, 13, and 14) because of the

Biosynthesis of yatein in Anthriscus sylvestris.

Little is known about the biosynthesis of yatein, in spite of its importance as a typical heartwood lignan and a key biosynthetic intermediate of the antitumor lignan podophyllotoxin. The present study, based on individual administration of [13C]phenylalanine and deuterium labelled lignans and simultaneous administration of two distinct lignans labelled with deuterium atoms to Anthriscus sylvestris, established the two independent branch pathways from matairesinol, one to afford yatein via thujaplicatin, 5-methylthujaplicatin, and 4,5-dimethylthujaplicatin and the other to bursehernin via pluviatolide. The latter pathway did not lead to yatein, eliminating the presence of a metabolic grid from matairesinol to yatein.

Phenyl ethers from cultured lichen mycobionts of Graphis scripta var. serpentina and G. rikuzensis.

Spore-derived mycobionts of the lichen Graphis scripta var. serpentina and G. rikuzensis were cultivated on a malt-yeast extract medium supplemented with 10% sucrose and their metabolites were investigated. 3,3'-Dihydroxy-5,5'-dimethyldiphenyl ether was isolated from the cultures of the mycobionts of G. scripta var. serpentina, while a new phenyl ether, rikuzenol, along with two known diphenyl ethers, violaceol-I and violaceol-II, were isolated from those of G. rikuzensis. The structure of the new compound was determined by spectroscopic methods. Violaceol-I was chemically synthesized and interconversion between violaceol-I and violaceol-II was proven.

First enantioselective total synthesis of (-)-tejedine

(Matrix presented) The first enantioselective total synthesis of (-)-tejedine (1) is reported. Tejedine is a seco-bisbenzyltetrahydroisoquinoline isolated in 1998 as a minor component from Berberis vulgaris. The synthesis was achieved using a strategy employing four key steps, including a chiral auxiliary-assisted diastereoselective Bischler-Napieralski cyclization.

Biosynthesis. Part 24. Speculative Incorporation Experiments with 1-Benzylisoquinolines and a Logical Approach via C6-C2 and C6-C3 Precursors to the Biosynthesis of Hasubanonine and Protostephanine

Many possible 1-benzyltetrahydroisoquinolines have been examined as possible advanced precursors of the alkaloids hasubanonine (1) and protostephanine (2) in Stephania japonica plants, but none was incorporated significantly.Administration of various precursor molecules having only one aromatic ring, such as tyrosine, has demonstrated that both alkaloids are derived from two different C6-C2 biogenetic units.The subsequent failure of further 1-benzyltetrahydroisoquinolines and bisphenethylamines to be incorporated suggested the intermediacy of either (a) modified 1-benzylisoquinolines or (b) trioxygenated C6-C2 building blocks.Precursors designed to examine the first possibility, such as 1-benzyl-3,4-dihydroisoquinolines or 1-benzyl-1-carboxytetrahydroisoquinolines, were not incorporated into (1) and (2) whereas two 3',4',5'-trioxygenated 2-phenylethylamines were incorporated.These findings allow further delineation of the requirements for later precursors of the alkaloids (1) and (2).