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【结 构 式】 
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【分子编号】59123 【品名】tert-butyl (3S)-3-[(acetyloxy)methyl]-5-amino-6-(benzyloxy)-2,3-dihydro-1H-indole-1-carboxylate 【CA登记号】 |
【 分 子 式 】C23H28N2O5 【 分 子 量 】412.4858 【元素组成】C 66.97% H 6.84% N 6.79% O 19.39% |
合成路线1
该中间体在本合成路线中的序号：(I)The reaction of indoline (I) with propynoic acid methyl ester (II) in methanol gives the acrylic acid derivative (III), which is cyclized by means of Pd(OAc)2 in DMA to yield the pyrroloindole (IV). The reduction of the ester group of (IV) by means of BH3/Me2S in refluxing THF affords intermediate (V), which is treated with CCl4 and PPh3 to provide the chloromethyl derivative (VI). The O-deprotection in (VI) by means of HCOONH4 and Pd/C in THF gives the hydroxy compound (VII), which is N-deprotected by means of HCl in ethyl acetate to yield the pyrroloindole (VIII). The condensation of (VIII) with the known indole carboxylic acid (IX) by means of EDC in DMF affords the carboxamide (X), which is treated with phenyl isocyanate (XI) and TEA in THF to provide the target Carzelesin.
| 【1】 Fukuda, Y.; et al.; Novel syntheses of optically active CC-1065, U-73,975 (adozelesin), U-80,244 (carzelesin), U-77,779 (bizelesin), KW-2189, and DU-86. Heterocycles 1997, 45, 12, 2303. |
| 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) | 59123 | tert-butyl (3S)-3-[(acetyloxy)methyl]-5-amino-6-(benzyloxy)-2,3-dihydro-1H-indole-1-carboxylate | C23H28N2O5 | 详情 | 详情 | |
| (II) | 19588 | methyl propiolate | 922-67-8 | C4H4O2 | 详情 | 详情 |
| (III) | 59124 | tert-butyl (3S)-3-[(acetyloxy)methyl]-6-(benzyloxy)-5-{[(E)-3-methoxy-3-oxo-1-propenyl]amino}-2,3-dihydro-1H-indole-1-carboxylate | C27H32N2O7 | 详情 | 详情 | |
| (IV) | 59126 | 6-(tert-butyl) 1-methyl (8S)-8-[(acetyloxy)methyl]-4-(benzyloxy)-7,8-dihydropyrrolo[3,2-e]indole-1,6(3H)-dicarboxylate | C27H30N2O7 | 详情 | 详情 | |
| (V) | 59127 | tert-butyl (1S)-5-(benzyloxy)-1-(hydroxymethyl)-8-methyl-1,6-dihydropyrrolo[3,2-e]indole-3(2H)-carboxylate | C24H28N2O4 | 详情 | 详情 | |
| (VI) | 59128 | tert-butyl (1S)-5-(benzyloxy)-1-(chloromethyl)-8-methyl-1,6-dihydropyrrolo[3,2-e]indole-3(2H)-carboxylate | C24H27ClN2O3 | 详情 | 详情 | |
| (VII) | 59129 | tert-butyl (1S)-1-(chloromethyl)-5-hydroxy-8-methyl-1,6-dihydropyrrolo[3,2-e]indole-3(2H)-carboxylate | C17H21ClN2O3 | 详情 | 详情 | |
| (VIII) | 59130 | (8S)-8-(chloromethyl)-1-methyl-3,6,7,8-tetrahydropyrrolo[3,2-e]indol-4-ol | C12H13ClN2O | 详情 | 详情 | |
| (IX) | 61765 | 5-{[6-(diethylamino)-1-benzofuran-2-yl]carbonyl}-1H-indole-2-carboxylic acid | C22H20N2O4 | 详情 | 详情 | |
| (X) | 61766 | [(1S)-1-(chloromethyl)-5-hydroxy-8-methyl-1,6-dihydropyrrolo[3,2-e]indol-3(2H)-yl](5-{[6-(diethylamino)-1-benzofuran-2-yl]carbonyl}-1H-indol-2-yl)methanone | C34H31ClN4O4 | 详情 | 详情 | |
| (XI) | 11289 | 1-Isocyanatobenzene; phenyl isocyanate; Phenylisocyanate | 103-71-9 | C7H5NO | 详情 | 详情 |
合成路线2
该中间体在本合成路线中的序号：(I)The intermediate pyrroloindole (VIII) was prepared from the previously reported (S)-aminoindoline (I). Michael addition of methyl propiolate (II) to aminoindoline (I) in MeOH provided the aminoacrylate (IIIa-b). Oxidative cyclization of (IIIa-b) was effected with Pd(OAc)2 in DMA to afford the 3-(methoxycarbonyl)pyrroloindole (IV). Simultaneous reduction of both the methyl ester and acetate groups of (IV) with borane-dimethyl sulfide complex gave rise to alcohol (V). Chlorination of (V) to give the chloromethyl derivative (VI) was carried out by treatment with triphenylphosphine and carbon tetrachloride. The O-benzyl protecting group of (VI) was subsequently removed by transfer hydrogenolysis yielding phenol (VII). The N-Boc group of (VII) was then cleaved under acidic conditions to furnish (VIII).
| 【1】 Fukuda, Y.; et al.; Novel syntheses of optically active CC-1065, U-73,975 (adozelesin), U-80,244 (carzelesin), U-77,779 (bizelesin), KW-2189, and DU-86. Heterocycles 1997, 45, 12, 2303. |
| 【2】 Kelly, R.C.; Aristoff, P.A. (Pharmacia Corp.); Novel CC-1065 analogs having two CPI subunits. EP 0359454; JP 1992500664; WO 9002746 . |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (IIIa) | 59124 | tert-butyl (3S)-3-[(acetyloxy)methyl]-6-(benzyloxy)-5-{[(E)-3-methoxy-3-oxo-1-propenyl]amino}-2,3-dihydro-1H-indole-1-carboxylate | C27H32N2O7 | 详情 | 详情 | |
| (IIIb) | 59125 | tert-butyl (3S)-3-[(acetyloxy)methyl]-6-(benzyloxy)-5-{[(Z)-3-methoxy-3-oxo-1-propenyl]amino}-2,3-dihydro-1H-indole-1-carboxylate | C27H32N2O7 | 详情 | 详情 | |
| (I) | 59123 | tert-butyl (3S)-3-[(acetyloxy)methyl]-5-amino-6-(benzyloxy)-2,3-dihydro-1H-indole-1-carboxylate | C23H28N2O5 | 详情 | 详情 | |
| (II) | 19588 | methyl propiolate | 922-67-8 | C4H4O2 | 详情 | 详情 |
| (IV) | 59126 | 6-(tert-butyl) 1-methyl (8S)-8-[(acetyloxy)methyl]-4-(benzyloxy)-7,8-dihydropyrrolo[3,2-e]indole-1,6(3H)-dicarboxylate | C27H30N2O7 | 详情 | 详情 | |
| (V) | 59127 | tert-butyl (1S)-5-(benzyloxy)-1-(hydroxymethyl)-8-methyl-1,6-dihydropyrrolo[3,2-e]indole-3(2H)-carboxylate | C24H28N2O4 | 详情 | 详情 | |
| (VI) | 59128 | tert-butyl (1S)-5-(benzyloxy)-1-(chloromethyl)-8-methyl-1,6-dihydropyrrolo[3,2-e]indole-3(2H)-carboxylate | C24H27ClN2O3 | 详情 | 详情 | |
| (VII) | 59129 | tert-butyl (1S)-1-(chloromethyl)-5-hydroxy-8-methyl-1,6-dihydropyrrolo[3,2-e]indole-3(2H)-carboxylate | C17H21ClN2O3 | 详情 | 详情 | |
| (VIII) | 59130 | (8S)-8-(chloromethyl)-1-methyl-3,6,7,8-tetrahydropyrrolo[3,2-e]indol-4-ol | C12H13ClN2O | 详情 | 详情 |
合成路线3
该中间体在本合成路线中的序号：(I)The condensation of indoline (I) with methyl acetoacetate (II) by means of Ts-OH in refluxing benzene gives the adduct (III), which is cyclized by means of Pd(OAc)2 in hot DMA to yield the pyrroloindole (IV). The hydrolysis of the acetate group of (IV) by means of K2CO3 in methanol affords the hydroxymethyl compound (V), which is treated with CCl4 and PPh3 to provide the chloromethyl derivative (VI). The cleavage of the benzyl protecting group of (VI) by means of HCOONH4 and Pd/C in THF gives the hydroxy derivative (VII), which is N-deprotected by means of HCl in ethyl acetate to yield the intermediate (VIII). The condensation of (VIII) with 5,6,7-trimethoxy-1H-indole-2-carboxylic acid (IX) by means of EDC in DMF affords the carboxamide (X), which is treated with DBU in acetonitrile to provide the cyclopropapyrroloindole (XI). The reaction of (XI) with HBr in acetonitrile gives the bromomethyl derivative (XII), which is treated with 4-nitrophenyl chloroformate (XIII) to yield the active carbonate ester (XIV). Finally, this compound is treated with 1-methylpiperazine (XV) to provide the target Pibrozelesin.
| 【1】 Fukuda, Y.; et al.; Novel syntheses of optically active CC-1065, U-73,975 (adozelesin), U-80,244 (carzelesin), U-77,779 (bizelesin), KW-2189, and DU-86. Heterocycles 1997, 45, 12, 2303. |
| 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) | 59123 | tert-butyl (3S)-3-[(acetyloxy)methyl]-5-amino-6-(benzyloxy)-2,3-dihydro-1H-indole-1-carboxylate | C23H28N2O5 | 详情 | 详情 | |
| (II) | 11791 | methyl 3-oxobutanoate; Methyl acetoacetate | 105-45-3 | C5H8O3 | 详情 | 详情 |
| (III) | 61767 | tert-butyl (3S)-3-[(acetyloxy)methyl]-6-(benzyloxy)-5-{[(E)-3-methoxy-1-methyl-3-oxo-1-propenyl]amino}-2,3-dihydro-1H-indole-1-carboxylate | C28H34N2O7 | 详情 | 详情 | |
| (IV) | 61768 | 6-(tert-butyl) 1-methyl (8S)-8-[(acetyloxy)methyl]-4-(benzyloxy)-2-methyl-7,8-dihydropyrrolo[3,2-e]indole-1,6(3H)-dicarboxylate | C28H32N2O7 | 详情 | 详情 | |
| (V) | 61769 | 6-(tert-butyl) 1-methyl (8S)-4-(benzyloxy)-8-(hydroxymethyl)-2-methyl-7,8-dihydropyrrolo[3,2-e]indole-1,6(3H)-dicarboxylate | C26H30N2O6 | 详情 | 详情 | |
| (VI) | 61770 | 6-(tert-butyl) 1-methyl (8S)-4-(benzyloxy)-8-(chloromethyl)-2-methyl-7,8-dihydropyrrolo[3,2-e]indole-1,6(3H)-dicarboxylate | C26H29ClN2O5 | 详情 | 详情 | |
| (VII) | 61771 | 6-(tert-butyl) 1-methyl (8S)-8-(chloromethyl)-4-hydroxy-2-methyl-7,8-dihydropyrrolo[3,2-e]indole-1,6(3H)-dicarboxylate | C19H23ClN2O5 | 详情 | 详情 | |
| (VIII) | 61772 | methyl (8S)-8-(chloromethyl)-4-hydroxy-2-methyl-3,6,7,8-tetrahydropyrrolo[3,2-e]indole-1-carboxylate | C14H15ClN2O3 | 详情 | 详情 | |
| (IX) | 61773 | 5,6,7-trimethoxy-1H-indole-2-carboxylic acid | C12H13NO5 | 详情 | 详情 | |
| (X) | 61774 | methyl (8S)-8-(chloromethyl)-4-hydroxy-2-methyl-6-[(5,6,7-trimethoxy-1H-indol-2-yl)carbonyl]-3,6,7,8-tetrahydropyrrolo[3,2-e]indole-1-carboxylate | C26H26ClN3O7 | 详情 | 详情 | |
| (XI) | 40881 | methyl (3bR,4aS)-2-methyl-8-oxo-6-[(5,6,7-trimethoxy-1H-indol-2-yl)carbonyl]-1,4,4a,5,6,8-hexahydrocyclopropa[c]pyrrolo[3,2-e]indole-3-carboxylate | C26H25N3O7 | 详情 | 详情 | |
| (XII) | 61775 | methyl (8S)-8-(bromomethyl)-4-hydroxy-2-methyl-6-[(5,6,7-trimethoxy-1H-indol-2-yl)carbonyl]-3,6,7,8-tetrahydropyrrolo[3,2-e]indole-1-carboxylate | C26H26BrN3O7 | 详情 | 详情 | |
| (XIII) | 16605 | 4-Nitrophenyl chloroformate; 1-[(Chlorocarbonyl)oxy]-4-nitrobenzene | 7693-46-1 | C7H4ClNO4 | 详情 | 详情 |
| (XIV) | 61776 | methyl (8S)-8-(bromomethyl)-2-methyl-4-{[(4-nitrophenoxy)carbonyl]oxy}-6-[(5,6,7-trimethoxy-1H-indol-2-yl)carbonyl]-3,6,7,8-tetrahydropyrrolo[3,2-e]indole-1-carboxylate | C33H29BrN4O11 | 详情 | 详情 | |
| (XV) | 10061 | 1-Methylpiperazine; 1-Methyl piperazine; N-Methylpiperazine | 109-01-3 | C5H12N2 | 详情 | 详情 |