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【结 构 式】

【分子编号】23708

【品名】propyl 2-(3-chlorophenyl)-4,6-diethyl-5-[(propylsulfanyl)carbonyl]-1,4-dihydro-3-pyridinecarboxylate

【CA登记号】

【 分 子 式 】C23H30ClNO3S

【 分 子 量 】436.01484

【元素组成】C 63.36% H 6.94% Cl 8.13% N 3.21% O 11.01% S 7.35%

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:(IX)

Acylation of Meldrum's acid (I) with propionyl chloride (II) in the presence of pyridine gave propionyl derivative (III). Subsequent ring opening of (III) with propanethiol (IV), followed by decarboxylation provided S-propyl 3-oxothiovalerate (V). Propyl 3-amino-3-(m-chlorophenyl)-2-propenoate (VII) was prepared by reaction of (3-chlorobenzoyl)acetate (VI) with ammonium acetate in refluxing ethanol. Then, Hantzsch condensation of ketothioester (V), beta-enaminoester (VII), and propionaldehyde (VIII) in EtOH at 80 C in a sealed tube furnished the dihydropyridine (IX). Finally, oxidation of (IX) using chloranil (X) in boiling THF gave the target pyridine.

1 Li, A.-H.; Moro, S.; Melman, N.; Ji, X.D.; Jacobson, K.A.; Structure-activity relationships and molecular mod. J Med Chem 1998, 41, 17, 3186.
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) 14738 Meldrum's acid; 2,2-dimethyl-1,3-dioxane-4,6-dione;Malonic acid cyclic isopropylidene ester 2033-24-1 C6H8O4 详情 详情
(II) 15967 propanoyl chloride; propionyl chloride 79-03-8 C3H5ClO 详情 详情
(III) 23689 2,2-dimethyl-5-propionyl-1,3-dioxane-4,6-dione C9H12O5 详情 详情
(IV) 23703 propylhydrosulfide; 1-propanethiol 107-03-9 C3H8S 详情 详情
(V) 23704 S-propyl 3-oxopentanethioate C8H14O2S 详情 详情
(VI) 23705 propyl 3-(3-chlorophenyl)-3-oxopropanoate C12H13ClO3 详情 详情
(VII) 23706 propyl (E)-3-amino-3-(3-chlorophenyl)-2-propenoate C12H14ClNO2 详情 详情
(VIII) 15966 propionaldehyde 123-38-6 C3H6O 详情 详情
(IX) 23708 propyl 2-(3-chlorophenyl)-4,6-diethyl-5-[(propylsulfanyl)carbonyl]-1,4-dihydro-3-pyridinecarboxylate C23H30ClNO3S 详情 详情
(X) 21891 2,3,5,6-Tetrachloro-1,4-benzoquinone; 2,3,5,6-Tetrachlorobenzo-1,4-quinone; p-Chloranil 118-75-2 C6Cl4O2 详情 详情
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