tert-butyl 4-((1R,3 aS,5aR,5bR,7aR,11aS,1IbR,13aR,13bR)-3a-((N-(2-(dimethylamino)ethyl)-4-methoxy-4-oxobutanamido)methyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

Base Information

Chemical Name:tert-butyl 4-((1R,3 aS,5aR,5bR,7aR,11aS,1IbR,13aR,13bR)-3a-((N-(2-(dimethylamino)ethyl)-4-methoxy-4-oxobutanamido)methyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate
CAS No.:1392113-24-4
Molecular Formula:C₅₀H₇₆N₂O₅
Molecular Weight:785.164
Hs Code.:

tert-butyl 4-((1R,3 aS,5aR,5bR,7aR,11aS,1IbR,13aR,13bR)-3a-((N-(2-(dimethylamino)ethyl)-4-methoxy-4-oxobutanamido)methyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

Synonyms:tert-butyl 4-((1R,3 aS,5aR,5bR,7aR,11aS,1IbR,13aR,13bR)-3a-((N-(2-(dimethylamino)ethyl)-4-methoxy-4-oxobutanamido)methyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

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Chemical Property of tert-butyl 4-((1R,3 aS,5aR,5bR,7aR,11aS,1IbR,13aR,13bR)-3a-((N-(2-(dimethylamino)ethyl)-4-methoxy-4-oxobutanamido)methyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

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Technology Process of tert-butyl 4-((1R,3 aS,5aR,5bR,7aR,11aS,1IbR,13aR,13bR)-3a-((N-(2-(dimethylamino)ethyl)-4-methoxy-4-oxobutanamido)methyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

There total 3 articles about tert-butyl 4-((1R,3 aS,5aR,5bR,7aR,11aS,1IbR,13aR,13bR)-3a-((N-(2-(dimethylamino)ethyl)-4-methoxy-4-oxobutanamido)methyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 71.8%

: 1392113-12-0
tert-butyl 4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-((2-(dimethylamino)ethylamino)methyl)-5a,5b,8,8, 11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11la,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

: 1490-25-1
succinic acid monomethylester chloride

: 1392113-24-4
tert-butyl 4-((1R,3 aS,5aR,5bR,7aR,11aS,1IbR,13aR,13bR)-3a-((N-(2-(dimethylamino)ethyl)-4-methoxy-4-oxobutanamido)methyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

Guidance literature:: With dmap; N-ethyl-N,N-diisopropylamine; In 1,2-dichloro-ethane; at 20 ℃; for 5h;
DOI:10.1016/j.bmcl.2018.03.067

Reference yield:

: 1392113-10-8
tert-butyl 4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-(hydroxymethyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

: 1392113-24-4
tert-butyl 4-((1R,3 aS,5aR,5bR,7aR,11aS,1IbR,13aR,13bR)-3a-((N-(2-(dimethylamino)ethyl)-4-methoxy-4-oxobutanamido)methyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

Guidance literature:: Multi-step reaction with 3 steps

1.1: pyridinium chlorochromate / dichloromethane / 6.5 h / 20 °C

2.1: acetic acid / 0.5 h / 20 °C

2.2: 20 °C

3.1: N-ethyl-N,N-diisopropylamine; dmap / 1,2-dichloro-ethane / 5 h / 20 °C

With dmap; acetic acid; N-ethyl-N,N-diisopropylamine; pyridinium chlorochromate; In dichloromethane; 1,2-dichloro-ethane;
DOI:10.1016/j.bmcl.2018.03.067

Reference yield:

: 1392113-11-9
tert-butyl 4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-formyl-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

: 1392113-24-4
tert-butyl 4-((1R,3 aS,5aR,5bR,7aR,11aS,1IbR,13aR,13bR)-3a-((N-(2-(dimethylamino)ethyl)-4-methoxy-4-oxobutanamido)methyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

Guidance literature:: Multi-step reaction with 2 steps

1.1: acetic acid / 0.5 h / 20 °C

1.2: 20 °C

2.1: N-ethyl-N,N-diisopropylamine; dmap / 1,2-dichloro-ethane / 5 h / 20 °C

With dmap; acetic acid; N-ethyl-N,N-diisopropylamine; In 1,2-dichloro-ethane;
DOI:10.1016/j.bmcl.2018.03.067