[CH:1]1[C:14]2[C:5](=[CH:6][C:7]3[C:12]([CH:13]=2)=[CH:11][CH:10]=[CH:9][CH:8]=3)[CH:4]=[CH:3][C:2]=1[OH:15].C(N(CC)CC)C.[P:23](=[O:32])(Cl)([S:27][CH2:28][CH2:29][CH3:30])[O:24][CH2:25][CH3:26].C(OCC)(=O)C>C1(C)C=CC=CC=1>[P:23](=[O:32])([S:27][CH2:28][CH2:29][CH3:30])([O:15][C:2]1[CH:3]=[CH:4][C:5]2[C:14](=[CH:13][C:12]3[C:7]([CH:6]=2)=[CH:8][CH:9]=[CH:10][CH:11]=3)[CH:1]=1)[O:24][CH2:25][CH3:26]2-Anthrol (3.0 grams; 0.015 mole), triethylamine (2.1 ml) and toluene (50 ml) were charged into a glass reaction vessel equipped with a mechanical stirrer and thermometer. The mixture was cooled to about 0° C. and O-ethyl S-propyl phosphorochloridothioate (3.01 grams; 0.015 mole) dissolved in toluene (38 ml) was added with stirring over a period of about 1/2 hour. After the addition was completed stirring was continued at room temperature overnight. After this time the reaction mixture was filtered to remove triethylamine hydrochloride and the filtrate stripped of solvent leaving solid residue. This residue was subjected to flash chromatography using ethyl acetate as the eluant to yield the desired product O-ethyl O-(2-anthryl) S-propyl phosphorothioate as a light tan solid melting at 79° to 83° C.
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