中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2-疏基-5,6,7,8-四氢-3H-苯并[4,5]噻吩并[2,3-d]嘧啶-4-酮 | 2-mercapto-6,7,8,9-tetrahydro-3H-benzo[4,5]thieno[2,3-d]pyrimidin-4-one | 38201-60-4 | C10H10N2OS2 | 238.334 |
—— | 2-ethylsulfanyl-5,6,7,8-tetrahydro-3H-benzo[4,5]thieno[2,3-d]pyrimidine-4-one | 91225-59-1 | C12H14N2OS2 | 266.388 |
—— | 5,6,7,8-tetrahydro-2-(methylthio)<1>benzothieno<2,3-d>pyrimidin-4(1H)-one | 51550-17-5 | C11H12N2OS2 | 252.361 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 2-isopropylidenehydrazino-5,6,7,8-tetrahydro-3H-benzo[4,5]thieno[2,3-d]pyrimidin-4-one | 53074-10-5 | C13H16N4OS | 276.362 |
—— | N-allyl-2-(4-oxo-5,6-tetramethylene-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)hydrazine-1-carbothioamide | —— | C14H17N5OS2 | 335.454 |
—— | 2-azido-5,6,7,8-tetrahydro<1>benzothieno<2,3-d>pyrimidin-4(3H)-one | 53074-13-8 | C10H9N5OS | 247.28 |
—— | 1-(4-Oxo-3,4,5,6,7,8-hexahydrobenzo[4,5]thieno[2,3-d]pyrimidin-2-yl)-4-phenylthiosemicarbazide | 302949-25-3 | C17H17N5OS2 | 371.487 |
—— | 4-(p-methoxyphenyl)-1-(4-oxo-3,4,5,6,7,8-hexahydro[1]benzothieno[2,3-d]pyrimidin-2-yl)thiosemicarbazide | 848667-30-1 | C18H19N5O2S2 | 401.513 |
—— | dimethyl (2Z)-2-[(4-oxo-5,6,7,8-tetrahydro-3H-[1]benzothiolo[2,3-d]pyrimidin-2-yl)hydrazinylidene]butanedioate | —— | C16H18N4O5S | 378.409 |
—— | 3-thioxo-5,6,7,8-tetrahydro-1H,2H-benzo[4,5]thieno[2,3-d][1,2,4]triazolo[4,5-a]-pyrimidin-5-one | 245362-41-8 | C11H10N4OS2 | 278.359 |
—— | 2-azido-4-chloro-5,6,7,8-tetrahydro<1>benzothieno<2,3-d>pyrimidine | 143770-04-1 | C10H8ClN5S | 265.726 |
—— | 2-amino-4-<4-methylphenyl>amino-5,6,7,8-tetrahydro<1>benzothieno<2,3-d>pyrimidine | 143770-27-8 | C17H18N4S | 310.423 |
—— | 2-amino-4-<4-chlorophenyl>amino-5,6,7,8-tetrahydro<1>benzothieno<2,3-d>pyrimidine | 143770-29-0 | C16H15ClN4S | 330.841 |
—— | 2-amino-4-<4-methoxyphenyl>amino-5,6,7,8-tetrahydro<1>benzothieno<2,3-d>pyrimidine | 143770-28-9 | C17H18N4OS | 326.422 |
—— | 2-azido-4-phenylamino-5,6,7,8-tetrahydro<1>benzothieno<2,3-d>pyrimidine | 143770-06-3 | C16H14N6S | 322.393 |
—— | 2-azido-4- |
143770-07-4 | C17H16N6S | 336.42 |
—— | 2-azido-4-<4-chlorophenyl>amino-5,6,7,8-tetrahydro<1>benzothieno<2,3-d>pyrimidine | 143770-09-6 | C16H13ClN6S | 356.838 |
—— | 2-azido-4-<4-methoxyphenyl>amino-5,6,7,8-tetrahydro<1>benzothieno<2,3-d>pyrimidine | 143770-08-5 | C17H16N6OS | 352.42 |
Cyclization of 2-hydrazino-5,6-dimethyl-3H-thieno[2,3-d]pyrimidin-4-one (1) with acetic acid gave 3,6,7-trimethyl-l,2,4-triazolo[3,4-a]thieno[2,3-d] pyrimidin-5-one (5) whose Dimroth rearrangement gave 2,6,7-trimethyl-l,2,4-triazolo[3,4-a]thieno[2,3-d]pyrimidin-5-one (11). Alternatively, 5 was obtained from the dehydrogenative cyclization of acetaldehyde 5,6- dimethyl-4-3H-oxo-thieno[2,3-d]pyrimidin-2-yl hydrazone (7). Reaction of 1 and 2 with a number of sugars gave the respective hydrazones 19 and 20. Those of the D-glucose exist in the cyclic pyranosyl structure in addition to minor amounts of the acyclic structure. Dehydrogenative cyclization of the sugar hydrazones gave the respective fused tricyclic compounds 25 and 26
2-肼基-5,6-二甲基-3H-噻吩[2,3-d]嘧啶-4-酮(1)与乙酸环化得到3,6,7-三甲基-1,2,4-三唑[3,4-a]噻吩[2,3-d]嘧啶-5-酮(5),其迪姆罗特重排得到2,6,7-三甲基-1,2,4-三唑[3,4-a]噻吩[2,3-d]嘧啶-5-酮(11)。另外,5也可以通过乙醛5,6-二甲基-4-3H-氧代-噻吩[2,3-d]嘧啶-2-基腙的脱氢环化得到。1和2与多种糖反应得到相应的腙19和20。D-葡萄糖的腙除了少量的非环状结构外,还存在环状的吡喃糖结构。糖腙的脱氢环化得到相应的融合三环化合物25和26。