【结 构 式】 |
【分子编号】60587 【品名】dimethyl 2-oxo-3-[3-(trifluoromethyl)phenyl]propylphosphonate 【CA登记号】 |
【 分 子 式 】C12H14F3O4P 【 分 子 量 】310.2097316 【元素组成】C 46.46% H 4.55% F 18.37% O 20.63% P 9.98% |
合成路线1
该中间体在本合成路线中的序号:(IX)[3-(Trifluoromethyl)phenyl]acetic acid (VI) is coupled to N,O-dimethylhydroxylamine to produce the N-methoxy amide (VII). Subsequent condensation of methoxyamide (VII) with dimethyl methylphosphonate (VIII) in the presence of BuLi leads to the oxo phosphonate (IX). Horner-Emmons condensation of phosphonate (IX) with aldehyde (V) furnishes enone (X). Diastereoselective reduction of (X) by means of catecholborane in the presence of (R)-2-methyl-CBS-oxazaborolidine in cold CH2Cl2 provides the allylic alcohol (XI) as the major isomer. Subsequent catalytic hydrogenation of (XI) gives the saturated alcohol (XII). Finally, basic hydrolysis of the ethyl ester group of (XII) produces the target carboxylic acid
【1】 Cameron, K.O.; Crawford, D.T.; DaSilva-Jardine, P.; et al.; Discovery and bone anabolic activity of highly selective EP4 receptor prostaglandin E2 (PGE2) agonists. 224th ACS Natl Meet (Aug 18 2002, Boston) 2002, Abst MEDI 307. |
【2】 Thompson, D.D.; Lefker, B.A.; Cameron, K.O.; Ke, H.Z. (Pfizer Products Inc.); EP4 receptor selective agonists in the treatment of osteoporosis. EP 1110949; JP 2001181210; WO 0146140 . |
中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
---|---|---|---|---|---|---|
(V) | 60584 | ethyl 7-[(2R)-2-formyl-5-oxopyrrolidinyl]heptanoate | C14H23NO4 | 详情 | 详情 | |
(VI) | 60585 | 2-[3-(trifluoromethyl)phenyl]acetic acid | C9H7F3O2 | 详情 | 详情 | |
(VII) | 60586 | N-methoxy-N-methyl-2-[3-(trifluoromethyl)phenyl]acetamide | C11H12F3NO2 | 详情 | 详情 | |
(VIII) | 13607 | dimethyl methylphosphonate | 756-79-6 | C3H9O3P | 详情 | 详情 |
(IX) | 60587 | dimethyl 2-oxo-3-[3-(trifluoromethyl)phenyl]propylphosphonate | C12H14F3O4P | 详情 | 详情 | |
(X) | 60588 | ethyl 7-((5R)-2-oxo-5-{(E)-3-oxo-4-[3-(trifluoromethyl)phenyl]-1-butenyl}pyrrolidinyl)heptanoate | C24H30F3NO4 | 详情 | 详情 | |
(XI) | 60589 | ethyl 7-((2R)-2-{(E,3S)-3-hydroxy-4-[3-(trifluoromethyl)phenyl]-1-butenyl}-5-oxopyrrolidinyl)heptanoate | C24H32F3NO4 | 详情 | 详情 | |
(XII) | 60590 | ethyl 7-((2S)-2-{(3R)-3-hydroxy-4-[3-(trifluoromethyl)phenyl]butyl}-5-oxopyrrolidinyl)heptanoate | C24H34F3NO4 | 详情 | 详情 |
合成路线2
该中间体在本合成路线中的序号:(VII)
【1】 Gutman A, Nisnevich G, Etinger M, et aL. 2005. Process for the preparation of prostaglandin derivatives. U S Pat Appl Publ. Cont-in-part of U S Ser N0478 849. US 2005209337(本专利属于Finetech Laboratories Ltd, Israel) |
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) | 10146 | Epichlorohydrin; 2-(Chloromethyl)oxirane | 106-89-8 | C3H5ClO | 详情 | 详情 |
(III) | 66881 | 1-chloro-3-(3-(trifluoromethyl)phenyl)propan-2-ol | 6310-15-2 | C10H10ClF3O | 详情 | 详情 |
(IV) | 66882 | 1-chloro-3-(3-(trifluoromethyl)phenyl)propan-2-one | C10H8ClF3O | 详情 | 详情 | |
(V) | 66883 | (Z)-2-(1-chloro-3-(3-(trifluoromethyl)phenyl)propan-2-ylidene)hydrazinecarboxamide | C11H11ClF3N3O | 详情 | 详情 | |
(VI) | 66884 | (Z)-dimethyl (2-(2-carbamoylhydrazono)-3-(3-(trifluoromethyl)phenyl)propyl)phosphonate | C13H17F3N3O4P | 详情 | 详情 | |
(VII) | 60587 | dimethyl 2-oxo-3-[3-(trifluoromethyl)phenyl]propylphosphonate | C12H14F3O4P | 详情 | 详情 | |
(VIII) | 43178 | (3aR,4S,5R,6aS)-4-(hydroxymethyl)-2-oxohexahydro-2H-cyclopenta[b]furan-5-yl [1,1'-biphenyl]-4-carboxylate | 31752-99-5 | C21H20O5 | 详情 | 详情 |
(IX) | 32122 | (3aR,4R,5R,6aS)-2-oxo-4-[(E)-3-oxo-4-[3-(trifluoromethyl)phenoxy]-1-butenyl]hexahydro-2H-cyclopenta[b]furan-5-yl [1,1'-biphenyl]-4-carboxylate | C31H25F3O6 | 详情 | 详情 | |
(X) | 66885 | C27H34O5Si | 详情 | 详情 | ||
(XI) | 66886 | (3aR,4R,5R,6aS)-5-hydroxy tert-butyldimethylsilyl-4-[(E,3R)-3-hydroxy-4-[3-(trifluoromethyl)phenoxy]-1-butenyl]hexahydro-2H-cyclopenta[b]furan-2-one | C24H37F3O5Si | 详情 | 详情 | |
(XII) | 66887 | (Z)-7-((1S,3S,5R)-2-((E)-3-((tert-butyldimethylsilyl)oxy)-4-(3-(trifluoromethyl)phenoxy)but-1-en-1-yl)-3,5-dihydroxycyclopentyl)hept-5-enoic acid | C29H43F3O5Si | 详情 | 详情 | |
(XIII) | 66888 | (Z)-7-((1S,3S,5R)-3,5-dihydroxy-2-((E)-3-hydroxy-4-(3-(trifluoromethyl)phenoxy)but-1-en-1-yl)cyclopentyl)hept-5-enoic acid | C23H29F3O6 | 详情 | 详情 | |
33504 (II) | 33504 | 3-(trifluoromethyl)phenol | 98-17-9 | C7H5F3O | 详情 | 详情 |