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(Z-Cys-OMe)2
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Topic: (Z-Cys-OMe)2 (Read 7394 times)
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sxdxland
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Posts: 7
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(Z-Cys-OMe)2
«
on:
June 19, 2007, 12:43:21 AM »
hello,all
I want to synthesis the (Z-Cys-OMe)2,CAS:3693-95-6
but i do not know how to do it ,
and i can not find some data for it (for example the mp.[a]20/D )
can you help me ?
3Q to you!
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sxdxland
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Posts: 7
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Re: (Z-Cys-OMe)2
«
Reply #1 on:
June 19, 2007, 01:52:35 AM »
nobody can help me ?
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sjb
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Re: (Z-Cys-OMe)2
«
Reply #2 on:
June 20, 2007, 07:54:15 AM »
Assuming the Z = benzyloxycarbonyl, I'd imagine the cysteine would dimerise relatively easily, even in air, so
Cys -> CysOMe (with TMS diazomethane or similar? - may hit the SH too?) -> Z-CysOMe -> (Z-CyS-OMe)2?
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sxdxland
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Posts: 7
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Re: (Z-Cys-OMe)2
«
Reply #3 on:
June 20, 2007, 09:19:19 PM »
thank sjb
now my synthesis route is (Cys)
2
--->(CBZ-Cys-OH)
2
--->(CBZ-Cys-OMe)
2
(CBZ-Cys-OH)
2
and (CBZ-Cys-OMe)
2
i have got,but I not sure ,because I have less information about them, maybe somebody can help me.
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