methyl (2S)-2-{[(benzyloxy)carbonyl]amino}-3-[4-(benzyloxy)phenyl]propanoate -Drug Synthesis Database

【结构式】

【分子编号】53340

【品名】methyl (2S)-2-{[(benzyloxy)carbonyl]amino}-3-[4-(benzyloxy)phenyl]propanoate

【CA登记号】n/a

【分子式】C₂₅H₂₅NO₅

【分子量】419.47724

【元素组成】C 71.58% H 6.01% N 3.34% O 19.07%

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：(IV)

The borinated tyrosine intermediate (VII) has been obtained as follows: The esterification of L-tyrosine (I) with SOCl2 and methanol gives the methyl ester (II), which is N-protected with Cbz-Cl and K2CO3 to yield the carbamate (III). The O-protection of (III) with benzyl bromide and Cs2CO3 affords the benzyl ether (IV), which is iodinated with I2 and Ag2SO4 to provide the 3-iodotyrosine derivative (V). Finally, the borylation of (V) by means of pinacolatodiborane (VI) catalyzed by PdCl2[bis(diphenylphosphanyl)ferrocene] (PdCl2(dppf)) gives rise to the target tyrosine intermediate (VII).

参考文献中间体

合成目标

【1】 Lin, S.N.; Danishefsky, S.J.; The total synthesis of proteasome inhibitors TMC-95A and TMC-95B: Discovery of a new method to generate cis-propenyl amides. Angew Chem. Int Ed 2002, 41, 3, 512.

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)	48794	(S)-(-)-Tyrosine; (S)-2-Amino-3-(4-hydroxyphenyl)propionic acid; 3-(4-Hydroxyphenyl)-L-alanine; L-(-)-Tyrosine; L-3-(4-Hydroxyphenyl)alanine; L-4-Hydroxy-17O-phenylalanine; L-beta-(p-Hydroxyphenyl)alanine; L-Hydroxy Phenyl Alanine; L-tyrosine	60-18-4	C₉H₁₁NO₃	详情	详情
(II)	21431	methyl (2S)-2-amino-3-(4-hydroxyphenyl)propanoate	1080-06-4	C₁₀H₁₃NO₃	详情	详情
(III)	53339	methyl (2S)-2-{[(benzyloxy)carbonyl]amino}-3-(4-hydroxyphenyl)propanoate	n/a	C₁₈H₁₉NO₅	详情	详情
(IV)	53340	methyl (2S)-2-{[(benzyloxy)carbonyl]amino}-3-[4-(benzyloxy)phenyl]propanoate	n/a	C₂₅H₂₅NO₅	详情	详情
(V)	53341	methyl (2S)-2-{[(benzyloxy)carbonyl]amino}-3-[4-(benzyloxy)-3-iodophenyl]propanoate	n/a	C₂₅H₂₄INO₅	详情	详情
(VI)	53342	4,4,4',4',5,5,5',5'-Octamethyl-2,2'-bi-1,3,2-dioxaborolane; Bis(pinacolato)diboron; Diboron pinacol ester	73183-34-3	C₁₂H₂₄B₂O₄	详情	详情
(VII)	53343	methyl (2S)-2-{[(benzyloxy)carbonyl]amino}-3-[4-(benzyloxy)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]propanoate	n/a	C₃₁H₃₆BNO₇	详情	详情

合成路线2

该中间体在本合成路线中的序号：(IV)

参考文献中间体

合成目标

【1】 Lin, S.N.; Danishefsky, S.J.; The total synthesis of proteasome inhibitors TMC-95A and TMC-95B: Discovery of a new method to generate cis-propenyl amides. Angew Chem. Int Ed 2002, 41, 3, 512.

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)	48794	(S)-(-)-Tyrosine; (S)-2-Amino-3-(4-hydroxyphenyl)propionic acid; 3-(4-Hydroxyphenyl)-L-alanine; L-(-)-Tyrosine; L-3-(4-Hydroxyphenyl)alanine; L-4-Hydroxy-17O-phenylalanine; L-beta-(p-Hydroxyphenyl)alanine; L-Hydroxy Phenyl Alanine; L-tyrosine	60-18-4	C₉H₁₁NO₃	详情	详情
(II)	21431	methyl (2S)-2-amino-3-(4-hydroxyphenyl)propanoate	1080-06-4	C₁₀H₁₃NO₃	详情	详情
(III)	53339	methyl (2S)-2-{[(benzyloxy)carbonyl]amino}-3-(4-hydroxyphenyl)propanoate	n/a	C₁₈H₁₉NO₅	详情	详情
(IV)	53340	methyl (2S)-2-{[(benzyloxy)carbonyl]amino}-3-[4-(benzyloxy)phenyl]propanoate	n/a	C₂₅H₂₅NO₅	详情	详情
(V)	53341	methyl (2S)-2-{[(benzyloxy)carbonyl]amino}-3-[4-(benzyloxy)-3-iodophenyl]propanoate	n/a	C₂₅H₂₄INO₅	详情	详情
(VI)	53342	4,4,4',4',5,5,5',5'-Octamethyl-2,2'-bi-1,3,2-dioxaborolane; Bis(pinacolato)diboron; Diboron pinacol ester	73183-34-3	C₁₂H₂₄B₂O₄	详情	详情
(VII)	53343	methyl (2S)-2-{[(benzyloxy)carbonyl]amino}-3-[4-(benzyloxy)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]propanoate	n/a	C₃₁H₃₆BNO₇	详情	详情

Extended Information