1-BOC-1,7-DIAMINOHEPTANE Chemical Properties

Boiling point:

340.9±25.0 °C(Predicted)

Density 

0.949±0.06 g/cm3(Predicted)

storage temp. 

2-8°C(protect from light)

pka

12.94±0.46(Predicted)

form 

liquid

color 

Colourless

Safety Information

Hazard Codes 

Xi

Hazard Note 

Irritant

HS Code 

2921599090

1-BOC-1,7-DIAMINOHEPTANE Usage And Synthesis

Description

tert-Butyl (7-aminoheptyl)carbamate is an alkane chain with terminal amine and Boc-protected amino groups. The compound can be used as a PROTAC linker in the synthesis of PROTACs and other conjugation applications. Amine group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The Boc group can be deprotected under mild acidic conditions to form the free amine.

Uses

tert-Butyl (7-aminoheptyl)carbamate (tert-Butyl 2,8-diaminooctanoate) is a PROTAC linker. tert-Butyl (7-aminoheptyl)carbamate can be used to synthesis CPD-10 (HY-168660)[1].

Synthesis

General procedure: preparation of mono-Boc-protected 1,7-diaminoheptane. Di-tert-butyl dicarbonate (Boc2O, 0.500 g, 2.291 mmol) was dissolved in chloroform (CHCl3, 10 mL) and the solution was added slowly and dropwise to a solution of 1,7-diaminoheptane (11.45 mmol) in chloroform (50 mL). The reaction mixture was stirred at room temperature for 24 hours. Subsequently, the reaction solution was concentrated and purified by fast column chromatography (silica gel, SiO2) using a gradient elution (0-10% MeOH) with chloroform/methanol (MeOH) containing 1% triethylamine (Et3N) to afford mono-Boc-protected 1,7-diaminoheptane ((tert-butyl (7-aminoheptyl)carbamate) as a colorless semi-solid (0.473 g, 90% yield ).1H NMR (CDCl3) δ: 4.52 (broad single peak, 1H), 3.12 (quadruple peak, J = 6.2 Hz, 2H), 2.70 (triple peak, J = 6.8 Hz, 2H), 1.43-1.23 (multiple peaks, 19H).

References

[1] Jing Liu, et al. Compounds and methods of treating cancers. French, WO2024183798A1.

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