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【结 构 式】

【分子编号】11046

【品名】methyl 2-[6,7-dihydro-1-benzothiophen-4(5H)-ylidene]acetate

【CA登记号】

【 分 子 式 】C11H12O2S

【 分 子 量 】208.28108

【元素组成】C 63.43% H 5.81% O 15.36% S 15.4%

与该中间体有关的原料药合成路线共 1 条

合成路线1

该中间体在本合成路线中的序号:(III)

A new synthesis of [14C]-PD-117302 has been described: The Reformatsky condensation of 4,5,6,7-tetrahydrobenzo[b]thiophen-4-one (II) with methyl [1-14C]-bromoacetate (I) by means of Zn in reflux toluene gives a mixture of methyl [1-14C]-2-(4,5,6,7-tetrahydrobenzothiophen-4-ylidene)acete (III) and methyl [1-14C]-2-(6,7-dihdyrobenzothiophen-4-yl)acetate (IV) which, without separation, are treated with Pd/C and S in refluxing N-methylpyrrolidone to afford methyl [1-14C]-2-(benzothiophen-4-yl)acetate (V). The hydrolysis of (V) with methanolic KOH yields the corresponding acid (VI), which is treated with refluxing SOCl2 to give the acyl chloride (VII). Finally, this compound is condensed with trans-1-[2-(methylamino)cyclohexyl]pyrrolidine (VIII) in dichloromethane ethyl ether.

1 Huang, C.C.; Hicks, J.L.; Butler, D.E.; Hays, S.J.; Synthesis of carbon-14 labeled PD 117,302 and PD 126,212, potential new analgesic agents. J Label Compd Radiopharm 1990, 28, 1, 15.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 11044 methyl 2-bromo-2-methylpropanoate; methyl 2-bromo-2-methylpropionate 23426-63-3 C5H9BrO2 详情 详情
(I) 63069 methyl 2-bromo-2-methylpropanoate C5H9BrO2 详情 详情
(II) 11045 6,7-Dihydro-1-benzothiophen-4(5H)-one; 4-Keto-4,5,6,7-tetrahydrothianaphthene; Tetrahydrobenzo(b)thiophene-4-one 13414-95-4 C8H8OS 详情 详情
(III) 11046 methyl 2-[6,7-dihydro-1-benzothiophen-4(5H)-ylidene]acetate C11H12O2S 详情 详情
(III) 63070 methyl 2-[6,7-dihydro-1-benzothiophen-4(5H)-ylidene]acetate C11H12O2S 详情 详情
(IV) 11047 methyl 2-(6,7-dihydro-1-benzothiophen-4-yl)acetate C11H12O2S 详情 详情
(IV) 63071 methyl 2-(6,7-dihydro-1-benzothiophen-4-yl)acetate C11H12O2S 详情 详情
(V) 11048 methyl 2-(1-benzothiophen-4-yl)acetate C11H10O2S 详情 详情
(V) 63072 methyl 2-(1-benzothiophen-4-yl)acetate C11H10O2S 详情 详情
(VI) 11049 2-(1-Benzothiophen-4-yl)acetic acid C10H8O2S 详情 详情
(VI) 63073 2-(1-benzothiophen-4-yl)acetic acid C10H8O2S 详情 详情
(VII) 11050 2-(1-Benzothiophen-4-yl)acetyl chloride C10H7ClOS 详情 详情
(VII) 63074 2-(1-benzothiophen-4-yl)acetyl chloride C10H7ClOS 详情 详情
(VIII) 11051 (1S,2S)-N-Methyl-2-(1-pyrrolidinyl)cyclohexanamine; N-Methyl-N-[(1S,2S)-2-(1-pyrrolidinyl)cyclohexyl]amine C11H22N2 详情 详情
Extended Information