... Gramain first reported the synthesis of compound 1 in racemic form, 7a while Gallagher reported the first ... by stirring Amberlite IRA-400(Cl) with 5% aqueous sodium hydroxide (∼5−6 times the volume of the ... 66.1, 67.7, 168.9; m/z 169 (M + , 71), 154 (6), 126 (22), 112 (27), 111 (35 ...