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The solution was allowed to warm to room temperature overnight. After the reaction mixture was cooled to 0 \u00b0C, methyl chloroformate (0.15 mL, 1.94 mmol) was added. During 1 h, the solution was warmed to room temperature before it was diluted with EtOAc (10 mL) and hydrolyzed with 1 M KHSO4(10 mL). The layers were separated, and the aqueous layer was extracted twice with EtOAc. The combined organic layers werde dried (Na2SO4), and the solvent was evaporated in vacuo. The crude product was purified by flash chromatography (silica, hexanes\/EtOAc)."}],"container-title":["Organic Letters"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/pubs.acs.org\/doi\/pdf\/10.1021\/ol050129j","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,10,11]],"date-time":"2021-10-11T07:59:22Z","timestamp":1633939162000},"score":1,"resource":{"primary":{"URL":"https:\/\/pubs.acs.org\/doi\/10.1021\/ol050129j"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2005,3,24]]},"references-count":35,"journal-issue":{"issue":"9","published-print":{"date-parts":[[2005,4,1]]}},"alternative-id":["10.1021\/ol050129j"],"URL":"https:\/\/doi.org\/10.1021\/ol050129j","relation":{},"ISSN":["1523-7060","1523-7052"],"issn-type":[{"value":"1523-7060","type":"print"},{"value":"1523-7052","type":"electronic"}],"subject":[],"published":{"date-parts":[[2005,3,24]]}}}