Reaction of 9-((RS)-2,3-dihydroxypropyl)adenine (I) with p-toluenesulfonyl chloride afforded the 3-O-p-toluenesulfonyl derivative II which on treatment with 2,3-dihydropyran was transformed into the 3-O-p-toluenesulfonyl-2-O-tetrahydropyranyl derivative III. Reaction of II with sodium isobutyl mercaptide in liquid ammonia gave 9-((RS)-3-isobutylthio-2-hydroxypropyl)adenine (IV). Analogously, compound III and disodium salt of L-homocysteine after acid hydrolysis afforded S-((RS)-3-(adenin-9-yl)-2-hydroxypropyl)-L-homocysteine (V). 9-((2S,3S)-threo-2,3-O-Isopropylidene-4-O-p-toluenesulfonyl-2,3,4-trihydroxybutyl)adenine (VIII) was transformed in a similar way into the 4-isobutylthio derivative IX and the L-homocysteine derivative X. 9-Allyladenine (XII) on treatment with bromine in dioxane afforded 9-((RS)-2,3-dibromopropyl)adenine (XIII) and probably 3,9-(2-bromotrimethylene)adeninium bromide (XIV). Reaction of compounds XIII, XIV and 9-((RS)-2,3-bis-p-toluenesulfonyloxypropyl)adenine (XI) with sodium hydrogen sulfide or sodium thioacetate led invariably to polymeric compounds. 4-p-Toluenesulfonyloxymethyl-2,2-dimethyl-1,3-dithiolane (XVa) reacted with sodium salt of adenine to give 9-(X)-2,2-dimethyl-1,3-dithiolane-4-ylmethyl)adenine (XVIa); analogously, 4-p-toluenesulfonyloxymethyl-2-phenyl-1,3-dithiolane (XVb) afforded the 2,3-S-benzylidene derivative XVIb and 1-p-toluenesulfonyloxy-2,3-bis(benzylthio)propane (XIXb) gave 9-((RS)-2,3-bis(benzylthio)propyl)adenine (XIXc). Acetolysis of XVIa or reduction of XVIb with sodium in liquid ammonia led to 9-((RS)-2,3-dimercaptopropyl)adenine (XVIII) and the corresponding episulfide XVII.
9-((RS)-2,3-二羟基丙基)
腺嘌呤(I)与
对甲苯磺酰氯反应生成3-O-对
甲苯磺酰衍
生物II,经
2,3-二氢吡喃处理后转化为3-O-对
甲苯磺酰-2-O-
四氢吡喃基衍
生物III。II与液
氨中的
异丁硫醇钠反
应得到9-((RS)-3-异丁
硫基-2-羟基丙基)
腺嘌呤(IV)。类似地,化合物III和L-同型半胱
氨酸二
钠盐经酸
水解后得到S-((RS)-3-(
腺嘌呤-9-基)-2-羟基丙基)-L-同型半胱
氨酸(V)。9-((2S,3S)-threo-2,3-O-
异丙基亚
甲基-4-O-对
甲苯磺酰-2,3,4-
三羟基丁基)
腺嘌呤(VIII)以类似方式转化为4-异丁
硫衍
生物IX和L-同型半胱
氨酸衍
生物X。9-
丙烯腺嘌呤(XII)经
二氧六环中
溴处理得到9-((RS)-2,3-二
溴丙基)
腺嘌呤(XIII)和可能的3,9-(2-
溴三亚
甲基)
腺嘌呤溴化物(XIV)。化合物XIII、XIV和9-((RS)-2,3-双-对
甲苯磺酰
氧基丙基)
腺嘌呤(XI)与
硫化氢钠或
硫代乙酸钠反应均不可避免地导致
聚合物化合物。4-对
甲苯磺酰
氧甲基-
2,2-二甲基-1,3-二
硫杂
环戊烷(XVa)与
腺嘌呤的
钠盐反
应得到9-(X)-
2,2-二甲基-1,3-二
硫杂
环戊烷-4-基
甲基)
腺嘌呤(XVIa);类似地,4-对
甲苯磺酰
氧甲基-2-
苯基-1,3-二
硫杂
环戊烷(XVb)得到2,3-S-苄亚
甲基衍
生物XVIb,1-对
甲苯磺酰
氧基-2,3-双(苄
硫)
丙烷(XIXb)得到9-((RS)-2,3-双(苄
硫)丙基)
腺嘌呤(XIXc)。XVIa的乙酰解或XVIb的液
氨中
钠还原导致9-((RS)-2,3-二巯基丙基)
腺嘌呤(XVIII)和相应的环
硫醚XVII。