【结 构 式】 |
【分子编号】35813 【品名】divinyl sulfone; dioxo(divinyl)-lambda(6)-sulfane 【CA登记号】77-77-0 |
【 分 子 式 】C4H6O2S 【 分 子 量 】118.15644 【元素组成】C 40.66% H 5.12% O 27.08% S 27.14% |
合成路线1
该中间体在本合成路线中的序号:(IV)2,5-Bis(p-bromophenyl)furan (II) was prepared by cyclodehydration of diketone (I) in refluxing acetic anhydride. Displacement of both bromine atoms by copper(I) cyanide in boiling quinoline generated the dicyano derivative (V). Alternatively, furan (V) was prepared by addition of p-cyanobenzaldehyde (III) to divinyl sulfone (IV) in the presence of a thiazolium catalyst. After conversion of the cyano groups of (V) into bis-imidate (VI), reaccion with ethanolic ammonia furnished amidine (VII). The stable symmetrical carbonate (X) was obtained by reaction of p-fluorophenyl chloroformate (VIII) with p-fluorophenol (IX) in the presence of pyridine. Finally, reaction of the bis(amidine) compound (VII) with carbonate (X) yielded the title compound.
【1】 Kawada, A.; Aragane, Y.; Maeda, A.; Tezuka, T.; Heterocycl Commun 1996, 2, 2, 135-140. |
【2】 Das, B.P.; Boykin, D.W.; Synthesis and antiprotozoal activity of 2,5-bis (4-guanylphenyl) furans. J Med Chem 1977, 20, 4, 531-536. |
【3】 Rahmathullah, S.M.; et al.; Prodrugs for amidines: Synthesis and anti-Pneumocystis carinii activity of carbamates of 2,5-bis(4-amidinophenyl)furan. J Med Chem 1999, 42, 19, 3994. |
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) | 35811 | 1,4-bis(4-bromophenyl)-1,4-butanedione | C16H12Br2O2 | 详情 | 详情 | |
(II) | 35812 | 2,5-bis(4-bromophenyl)furan | C16H10Br2O | 详情 | 详情 | |
(III) | 17552 | 4-formylbenzonitrile; 4-Cyanobenzaldehyde | 105-07-7 | C8H5NO | 详情 | 详情 |
(IV) | 35813 | divinyl sulfone; dioxo(divinyl)-lambda(6)-sulfane | 77-77-0 | C4H6O2S | 详情 | 详情 |
(V) | 35814 | 4-[5-(4-cyanophenyl)-2-furyl]benzonitrile | C18H10N2O | 详情 | 详情 | |
(VI) | 35815 | ethyl 4-(5-[4-[ethoxy(imino)methyl]phenyl]-2-furyl)benzenecarboximidoate | C22H22N2O3 | 详情 | 详情 | |
(VII) | 35816 | 4-(5-[4-[amino(imino)methyl]phenyl]-2-furyl)benzenecarboximidamide | C18H16N4O | 详情 | 详情 | |
(VIII) | 35817 | 1-[(chlorocarbonyl)oxy]-4-fluorobenzene | 38377-38-7 | C7H4ClFO2 | 详情 | 详情 |
(IX) | 19639 | 4-fluorophenol | 371-41-5 | C6H5FO | 详情 | 详情 |
(X) | 35818 | bis(4-fluorophenyl) carbonate | C13H8F2O3 | 详情 | 详情 |
合成路线2
该中间体在本合成路线中的序号:(II)In an improved procedure, conjugate addition of divinyl sulfone (II) to 2,6-difluoroaniline (I) in the presence of AlCl3 leads to the N-aryl thiomorpholine sulfone (III). Aromatic nitration of (III) with fuming HNO3 in AcOH affords (IV). The nitroaryl derivative (IV) is then reduced to aniline (V) by catalytic hydrogenation over Raney Ni. Condensation of aniline (V) with isobutyl chloroformate furnishes carbamate (VI). This is finally cyclized with (S)-N-(2-acetoxy-3-chloropropyl)acetamide (VII) to generate the target oxazolidinone compound.
【1】 Greene, M.L.; et al.; Synthetic studies leading to the identification of PNU-288034, a potent new oxazolidinone antibacterial agent. 42nd Intersci Conf Antimicrob Agents Chemother (Sept 27 2002, San Diego) 2002, Abst F-1333. |
【2】 Zurenko, G.E.; Barbachyn, M.R. (Pharmacia Corp.); A thiazine oxazolidinone. EP 1294717; US 2002156072; US 6605609; WO 0198297 . |
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) | 17933 | 2,6-Difluorophenylamine; 2,6-Difluoroaniline | 5509-65-9 | C6H5F2N | 详情 | 详情 |
(II) | 35813 | divinyl sulfone; dioxo(divinyl)-lambda(6)-sulfane | 77-77-0 | C4H6O2S | 详情 | 详情 |
(III) | 62754 | 4-(2,6-difluorophenyl)-1lambda~6~,4-thiazinane-1,1-dione | C10H11F2NO2S | 详情 | 详情 | |
(IV) | 62755 | 4-(2,6-difluoro-4-nitrophenyl)-1lambda~6~,4-thiazinane-1,1-dione | C10H10F2N2O4S | 详情 | 详情 | |
(V) | 62756 | 4-(4-amino-2,6-difluorophenyl)-1lambda~6~,4-thiazinane-1,1-dione | C10H12F2N2O2S | 详情 | 详情 | |
(VI) | 62757 | isobutyl 4-(1,1-dioxo-1lambda~6~,4-thiazinan-4-yl)-3,5-difluorophenylcarbamate | C15H20F2N2O4S | 详情 | 详情 | |
(VII) | 61915 | (1S)-2-(acetylamino)-1-(chloromethyl)ethyl acetate | C7H12ClNO3 | 详情 | 详情 |