120094-83-9

Upstream product

• 331-39-5 caffeic acid 
• 1421-65-4 L-dopa methyl ester hydrochloride 
• 7101-51-1 L-DOPA methyl ester 
• 59-92-7 levodopa 
• 331-39-5 caffeic acid 

Downstream Products

• 53755-02-5 3-(3,4-dihydroxy-phenyl)-2-[3-(3,4-dihydroxy-phenyl)-acryloylamino]propionic acid 
• 64803-83-4 pentamethyl-trans-clovamide 

Relevant academic research and scientific papers

Synthesis of clovamide analogues that inhibit no production in activated BV-2 microglial cells

A series of methyl ester of clovamide analogues, where the hydroxyl group of catechol moiety in caffeic acid and L-3,4-dihydroxyphenylalanine (L-dopa) was replaced with various functional groups, were synthesized and their inhibitory effects on nitric oxi

Rosmarinic acid derivative as well as preparation method and application thereof

The invention relates to a rosmarinic acid derivative as well as a preparation method thereof. The rosmarinic acid analog provided by the invention or a salt which comprises a medicine of the analog and is clinically acceptable has good application prospe

Synthesis and biological evaluation of clovamide analogues with catechol functionality as potent Parkinson's disease agents in vitro and in vivo

In this study, seven clovamide analogues (1–7) were designed and synthesized, and the neuroprotection of 1–7 as well as 8–15 (prepared in our previous work) against H2O2-induced oxidative stress was evaluated in SH-SY5Y cells. Results showed that 1–7 with catechol groups exhibited better neuroprotective effects than 8–15, and their EC50 values ranged from 4.26 to 23.83 μM, especially 1, indicating that the moiety of catechol governed the activities of these compounds. Furthermore, oral administration of 1 (10 or 20 mg/kg) was demonstrated to possess anti-PD effect through alleviating apoptosis and oxidative stress in vitro and in vivo, and to up-regulate the expression of heme oxygenase-1 (HO-1) via PI3K/AKT/mTOR pathway. Finally, the pharmacokinetic (PK) assessment of 1 was determined in rats. These findings suggested that 1 might be an effective candidate for PD therapy.

Structure-activity relationship of clovamide and its related compounds for the inhibition of amyloid β aggregation

Alzheimer's disease (AD), a neurodegenerative disorder, is characterized by aggregation of amyloid β-protein (Aβ). Aβ aggregates through β-sheet formation and induces cytotoxicity against neuronal cells. Inhibition of Aβ aggregation by naturally occurring compounds is thus a promising strategy for the treatment of AD. We have already reported that caffeoylquinic acids and phenylethanoid glycosides, which possess two or more catechol moieties, strongly inhibited Aβ aggregation. Clovamide (1) containing two catechol moieties, isolated from cacao beans (Theobroma cacao L.), is believed to exhibit preventive effects on Aβ aggregation. To investigate the structure-activity relationship of clovamide (1) for the inhibition of Aβ aggregation, we synthesized 1 and related compounds 2–11 through reaction between L-DOPA, D-DOPA, L-tyrosine, or L-phenylalanine and caffeic acid, p-coumaric acid, or cinnamic acid, and compounds 12 and 13 were derived from 1. Among tested compounds 1–13, those containing one or two catechol moieties exhibited potent anti-aggregation activity, whereas the non-catechol-type related compounds showed little or no activity. This suggests that at least one catechol moiety is essential for inhibition of Aβ42 aggregation, and this activity increases depending on the number of catechol moieties. Consequently, clovamide (1) and its related compounds may be a promising therapeutic option for inhibiting Aβ-mediated pathology in AD.

Anti-tyrosinase, antioxidant and antimicrobial activities of hydroxycinnamoylamides

Synthetic hydroxycinnamoylamides of amino acids (precursors of aromatic amines) were studied for their antioxidant activity in vitro by two antioxidant assay systems, including 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical and inhibition of lipid peroxidation (LPO). Furthermore, these compounds were tested and compared with their corresponding cinnamoylamides of aromatic amines for their inhibitory activity using mushroom tyrosinase. In addition, five hydroxycinnamoyl amino acid amides were investigated for their antimicrobial effect. Structure-activity relationships analysis disclosed that the presence of catechol rest at amino acid or at benzene moieties of substituted cinnamic acid amides significantly scavenged DPPH radical and inhibited LPO. The results obtained by LPO clearly expressed the positive influence of indole moiety on the activity. Moreover, the existence of p-hydroxy substituted cinnamic acid moiety leads to better tyrosinase inhibition. Amongst the tested compounds, amides of p-coumaroyldopamine or tyramine and their corresponding amino acid precursors are the most potent tyrosinase inhibitors.

Caffeoylglycolic and caffeoylamino acid derivatives, halfmers of l-chicoric acid, as new HIV-1 integrase inhibitors

Human immunodeficiency virus (HIV) integrase (IN) catalyzes the integration of HIV DNA copy into the host cell DNA. l-Chicoric acid (1) has been found to be one of the most potent HIV-1 integrase inhibitor. Caffeoylglycolic and caffeoylamino acid derivati

Derivatives of hydroxyphenyl, a method for preparing thereof and their pharmaceutical composition

The present invention relates to derivatives of hydroxyphenyl, a method for preparing thereof and their pharmaceutical composition, more particularly the compounds of the present invention specifically inhibit the activation of T lymphocyte by src homology region 2(SH2) domain of T lymphocyte (lck), so that they can be used for the treatment, prevention and/or diagnosis of graft rejection, autoimmune diseases, inflammatory diseases, etc.