2-[(R)-2-amino-1-propylthio]-5-chlorobenzothiazole hydrochloride   、                                                                                         、                                                                                      
2-巯基-5-氯苯并噻唑   、                                                                                      
(2R,3R,4R,5R)-4-(acetyloxy)-2-[(acetyloxy)methyl]-5-(2,6-dichloro-9H-purin-9-yl)tetrahydro-3-furanyl acetate   、                                                                                      2',3',5'-tri-O-acetyl-2-chloro-N-[(R)-1-(5-chloro-2-benzothiazolyl)thio-2-propyl]adenosine   、                                                                                      
sodium methylate                                                                                                                                                              在
                                                                                                                                                                                 
2-Chloro-N-[(R)-1-(5-chloro-2-benzothiazolyl)thio-2-propyl]adenosine                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                                                        以to provide the title N-[(R)-1-(5-chloro-2-benzothiazolyl)thio-2-propyl]2-chloroadenosine (0.30 g, 46%) as a solid, mp 145 ° C. (following column chromatography), 1H NMR (DMSO-d6) δ 1.39 (3H, d, --CHCH3), 3.45-3.78 (4H, m, H-5'a and H-5'b and --CH2 --), 3.96 (1H, q, H-4'), 4.14 (1H, t, H-3'), 4.52 (1H, t, H-2'), 4.72 (1H, m,-CH), 5.84 (1H, d, H-1'), 7.41 (1H, dd, Ar-H), 7.94 (1H, s, Ar-H), 8.02 (1H, dd, Ar-H), 8.42 (1H, s, H-8), 8.52 (1H, d, N--H)的产率得到2-Chloro-N-[(R)-1-(5-chloro-2-benzothiazolyl)thio-2-propyl]adenosine