methyl 3-(trimethylsilyl)-2-propynoate -Drug Synthesis Database

【结构式】

【分子编号】32594

【品名】methyl 3-(trimethylsilyl)-2-propynoate

【CA登记号】

【分子式】C₇H₁₂O₂Si

【分子量】156.25658

【元素组成】C 53.81% H 7.74% O 20.48% Si 17.97%

与该中间体有关的原料药合成路线共 2 条

合成路线1 合成路线2

合成路线1

该中间体在本合成路线中的序号：(II)

Diels-Alder condensation of benzopyran (I) with methyl (trimethylsilyl)propynoate (II) gave rise to tetrahydronaphthalene (III). After reduction of the ester group of (III) with LiAlH4, the resulting alcohol (IV) was further oxidized to aldehyde (V) by means of 4-benzylpyridinium dichromate. Treatment of (V) with iodine monochloride produced iodonaphthalene (VI). Subsequent reaction of (VI) with vinyl tributyltin and palladium tetrakis(triphenylphosphine) yielded the vinyl naphthalene (VII). Wittig reaction of (VIII with (carbomethoxymethylidene)triphenylphosphorane (VIII) gave the arylpropenoate ester (IX), which was reduced to the saturated ester (X) employing samarium iodide.

参考文献中间体

合成目标

【1】 Lavielle, G.; Cimetiere, B.; Verbeuren, T.; Simonet, S.; Descombes, J.-J. (ADIR et Cie.); Nouveaux dérivés de benzènsessulfonylamine, leur procédé depréparation et les compositions pharmaceutiques qui les contiennent. EP 0864561 .

中间体序号	中间体编号	品名	CAS号	分子式	供应商	用于合成
	24920	tributyl(vinyl)stannane；Tributylvinylstannane;Vinyltributylstannane	7486-35-3	C₁₄H₃₀Sn	详情	详情
(I)	19586	4-chloro-N-(2-oxo-5,6,7,8-tetrahydro-2H-chromen-6-yl)benzenesulfonamide		C₁₅H₁₄ClNO₄S	详情	详情
(II)	32594	methyl 3-(trimethylsilyl)-2-propynoate		C₇H₁₂O₂Si	详情	详情
(III)	32595	methyl 6-[[(4-chlorophenyl)sulfonyl]amino]-2-(trimethylsilyl)-5,6,7,8-tetrahydro-1-naphthalenecarboxylate		C₂₁H₂₆ClNO₄SSi	详情	详情
(IV)	32596	4-chloro-N-[5-(hydroxymethyl)-6-(trimethylsilyl)-1,2,3,4-tetrahydro-2-naphthalenyl]benzenesulfonamide		C₂₀H₂₆ClNO₃SSi	详情	详情
(V)	32597	4-chloro-N-[5-formyl-6-(trimethylsilyl)-1,2,3,4-tetrahydro-2-naphthalenyl]benzenesulfonamide		C₂₀H₂₄ClNO₃SSi	详情	详情
(VI)	19571	4-chloro-N-(5-formyl-6-iodo-1,2,3,4-tetrahydro-2-naphthalenyl)benzenesulfonamide		C₁₇H₁₅ClINO₃S	详情	详情
(VII)	32598	4-chloro-N-(5-formyl-6-vinyl-1,2,3,4-tetrahydro-2-naphthalenyl)benzenesulfonamide		C₁₉H₁₈ClNO₃S	详情	详情
(VIII)	14689	Methyl (triphenylphosphoranylidene)acetate; (methoxycarbonylmethylene)triphenylphosphorane；Methyl 2-(triphenyl-lambda(5)-phosphanylidene)acetate	2605-67-6	C₂₁H₁₉O₂P	详情	详情
(IX)	32599	methyl (E)-3-(6-[[(4-chlorophenyl)sulfonyl]amino]-2-vinyl-5,6,7,8-tetrahydro-1-naphthalenyl)-2-propenoate		C₂₂H₂₂ClNO₄S	详情	详情
(X)	32600	methyl 3-(6-[[(4-chlorophenyl)sulfonyl]amino]-2-vinyl-5,6,7,8-tetrahydro-1-naphthalenyl)propanoate		C₂₂H₂₄ClNO₄S	详情	详情

合成路线2

该中间体在本合成路线中的序号：(II)

Condensation of isatoic anhydride (I) with DL-phenylalanine ethyl ester (II) affords anthranilamide (III). Subsequent acylation of amino amide (III) with indole-2-carbonyl chloride (IV) provides diamide (V). The ethyl ester group of (V) is finally hydrolyzed to the target carboxylic acid with methanolic KOH

参考文献中间体

合成目标

【1】 Varnavas, A.; Lassiani, L.; Valenta, V.; Berti, F.; Mennuni, L.; Makovec, F.; Anthranilic acid derivatives: A new class of non-peptide CCK1 receptor antagonists. Bioorg Med Chem 2003, 11, 5, 741.

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)	29797	2H-3,1-benzoxazine-2,4(1H)-dione；Isatoic anhydride;4H-3,1-Benzoxazine-2,4(1H)-dione；1,2-Dihydro-4H-3,1-benzoxazine-2,4-dione;1H-benzo[d][1,3]oxazine-2,4-dione	118-48-9	C₈H₅NO₃	详情	详情
(II)	32594	methyl 3-(trimethylsilyl)-2-propynoate		C₇H₁₂O₂Si	详情	详情
(III)	62746	ethyl 2-[(2-aminobenzoyl)amino]-3-phenylpropanoate		C₁₈H₂₀N₂O₃	详情	详情
(IV)	62747	1H-indole-2-carbonyl chloride		C₉H₆ClNO	详情	详情
(V)	62748	ethyl 2-({2-[(1H-indol-2-ylcarbonyl)amino]benzoyl}amino)-3-phenylpropanoate		C₂₇H₂₅N₃O₄	详情	详情

Extended Information