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【结 构 式】

【分子编号】65274

【品名】(1S,2S)-3-chlorocyclohexa-3,5-diene-1,2-diol

【CA登记号】 

【 分 子 式 】C6H7ClO2

【 分 子 量 】146.57308

【元素组成】C 49.17% H 4.81% Cl 24.19% O 21.83%

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:(XIV)

The tosylate precursor (I) can be prepared by a number of different methods. Microbial dihydroxylation of chlorobenzene (XIII) gives (1S,2S)-3-chlorocyclohexa-3,5-diene-1,2-diol (XIV), which is further hydrogenated to (XV) in the presence of Rh/Al 2O3. Regioselective tosylation of (XV), followed by hydrogenation of the resulting monotosylate (XVI) over Pd/C, leads to (1S,2R)-2-hydroxycyclohexyl tosylate (XVII). Subsequent coupling of (XVII) with imidate (X) provides the target intermediate (I) (1). In a different method, ketalization of (S,S)-1,2-cyclohexanediol (XVIII) with 2,2-dimethoxypropane provides the acetonide (XIX), which is oxidized to 2(S)-hydroxycyclohexanone (XX) by treatment with bis(trifluoromethyl)-dioxirane (BTDO). Subsequent tosylation of (XX) furnishes 2(S)-tosyloxycyclohexanone (XXI). Alternatively, the chiral tosyl ketone (XXI) can be obtained by monotosylation of diol (XVIII) in the presence of Bu2SnO to afford the hydroxy tosylate (XXII), which is subjected to Jones oxidation, giving ketone (XXI). The diastereoselective reduction of ketone (XXI) then provides an alternative route to 2(R)-hydroxy tosylate (XVII). Alternatively, the chiral tosyl ketone (XXI) is condensed with the sodium alkoxide of 3,4-dimethoxyphenethyl alcohol (XI) to yield the 2(R)-ether (XXIIIa). Stereoselective reduction of ketone (XXIIIa) utilizing bulky reducing agents such as L-Selectride, LS-Selectride or alpine boranes gives the (S)-cyclohexanol (XXIV), which can be further converted to tosylate (I) under the usual conditions. Similarly, the phenethyl alcohol (XI) can be reacted with 2-chlorocyclohexanone (XXV) by means of NaH to yield the racemic ketone ether (XXIIIb), which is enantioselectively reduced to the (1S,2R)-phenethoxycyclohexanol (XXIV) under Noyori’s asymmetric hydrogenation conditions. A further route to the phenethoxy ketone (XXIIIa) consists of the enantioselective α-oxyamination of cyclohexanone (XXVI) with nitrosobenzene in the presence of L-proline to produce the chiral hydroxylamine derivative (XXVII), which is subsequently cleaved to 2(R)-hydroxycyclohexanone (XXVIII) by treatment with CuSO4, and then coupled with imidate (X) in the presence of boron trifluoride etherate. Optionally, 2(R)-hydroxycyclohexanone (XXVIII) can be obtained by oxidation of the (1R,2R)-cyclohexanediol acetonide (XXIX) with BTDO. Another method for obtaining the (1S,2R)-phenethoxy cyclohexanol (XXIV) is based on the asymmetric reduction of (3,4-dimethoxyphenyl)acetaldehyde cyclohexanediol acetal (XXX) by means of triethylsilane in the presence of chiral Lewis acids (2). Scheme 2.

1 Beatch, G.N., Choi, L.S.L., Jung, G. et al. (Cardiome Pharma Corp.). Aminocyclohexyl ether compounds and uses thereof. EP 1560812, EP1666459, JP 2006525227, WO 2004099137.
2 Plouvier, B.M.C., Chou, D.T.H., Jung, G. et al. (Cardiome Pharma Corp.). Synthetic process for aminocyclohexyl ether compounds. WO 2006088525.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(XXIIIa) 65283     C16H22O4 详情 详情
(XXIIIb) 65284     C16H22O4 详情 详情
(I) 65263 (1S,2R)-2-[2-(3,4-dimethoxyphenyl)ethoxy]cyclohexyl tosylate   C23H30O6S 详情 详情
(X) 65272 3,4-dimethoxyphenethyl trichloroacetimidate   C12H14Cl3NO3 详情 详情
(XIII) 10190 1-Chlorobenzene 108-90-7 C6H5Cl 详情 详情
(XIV) 65274 (1S,2S)-3-chlorocyclohexa-3,5-diene-1,2-diol   C6H7ClO2 详情 详情
(XV) 65275 (1S,2S)-3-chlorocyclohexa-3-ene-1,2-diol   C6H9ClO2 详情 详情
(XVI) 65276 (1S,2S)-3-chloro-2-hydroxycyclohexa-3-ene-1-yl tosylate   C13H15ClO4S 详情 详情
(XVII) 65277 (1S,2R)-2-hydroxycyclohexyl tosylate   C13H18O4S 详情 详情
(XVIII) 65278 (1R,2R)-1,2-Cyclohexanediol 1072-86-2 C6H12O2 详情 详情
(XIX) 65279 (1S,2S)-cyclohexanediol acetonide   C9H16O2 详情 详情
(XX) 65280 (2S)-hydroxycyclohexanone   C6H10O2 详情 详情
(XXI) 65281 (2S)-tosyloxycyclohexanone   C13H16O4S 详情 详情
(XXII) 65282 (1S,2S)-2-hydroxycyclohexyl tosylate   C13H18O4S 详情 详情
(XXIV) 65285 (1S,2R)-phenethoxycyclohexanol   C16H24O4 详情 详情
(XXV) 17985 2-Chlorocyclohexanone 822-87-7 C6H9ClO 详情 详情
(XXVI) 11059 Cyclohexanone 108-94-1 C6H10O 详情 详情
(XXVII) 65286     C12H15NO2 详情 详情
(XXVIII) 65287 (2R)-hydroxycyclohexanone   C6H10O2 详情 详情
(XXIX) 65288 (1R,2R)-cyclohexanediol acetonide   C9H16O2 详情 详情
(XXX) 65289 (3,4-dimethoxyphenyl)acetaldehyde cyclohexanediol acetal   C16H21O4 详情 详情
Extended Information