Practical asymmetric synthesis of a selective endothelin a receptor (ETA) antagonist
ZJ Song, M Zhao, L Frey, J Li, L Tan, CY Chen…
Index: Organic Letters, , vol. 3, # 21 p. 3357 - 3360
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Citation Number: 32
Abstract
... Volume: Page: ... Organic Letters. ... eg, when the benzyl protecting group was replaced with benzoyl, the ee of the product was much lower (entries 1 and 5). In addition, it was found that as protecting group in the bottom aryl fragment (Ar 2 in Scheme 3), the trityl ...
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