99196-56-2

Upstream product

• 543-59-9 1-Chloropentane 
• 3943-97-3 methyl 4-hydroxycinnamate 

Downstream Products

• 110683-41-5 (E)-3-(4-Pentyloxy-phenyl)-N-[3-(1H-tetrazol-5-yl)-2,3-dihydro-benzo[1,4]dioxin-5-yl]-acrylamide 
• 62718-63-2 4-pentyloxy-trans-cinnamic acid 

Relevant academic research and scientific papers

New potent antagonists of leukotrienes C4 and D4. 1. Synthesis and structure-activity relationships

(p-Amylcinnamoyl)anthranilic acid (3a) had moderate antagonist activities against LTD4-induced smooth muscle contraction on guinea pig ileum and LTC4-induced bronchoconstriction in anesthetized guinea pigs. Modifications were made in the hydrophobic part (cinnamoyl moiety) and the hydrophilic part (anthranilate moiety) of 3a. A series of 8-(benzoylamino)-2-tetrazol-5-yl-1,4-benzodioxans and 8-(benzoylamino)-2-tetrazol-5-yl-4-oxo-4H-1-benzopyrans were revealed to be potent antagonists of leukotrienes C4 and D4. Among both series, ONO-RS-347 (18k) and ONO-RS411 (19h) were the most potent and orally active antagonists, respectively. Structure-activity relationships are discussed.