104069-09-2Relevant articles and documents
Synthesis of the active form of loxoprofen by using allylic substitutions in two steps
Hyodo, Tomonori,Kiyotsuka, Yohei,Kobayashi, Yuichi
body text, p. 1103 - 1106 (2009/07/25)
High regioselectivity for allylic substitution of the cyclopentenyl picolinate 5 with benzylcopper reagent was attained with ZnBr2, and the finding was applied to the p-BrC6H4CH2 reagent. The cyclopentene moiety in the product was reduced to the cyclopentane, and the p-BrC6H4 was converted to the "Cu"C6H4 for the second allylic substitution with picolinate 8 to furnish the title compound after oxidative cleavage of the resulting olefin moiety.