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Topic: ChemDraw Carbohydrate Style help  (Read 6392 times)

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Offline SkjaldbakaSykur

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ChemDraw Carbohydrate Style help
« on: February 17, 2017, 04:42:06 AM »
Hi guys,
trying to draw glycans in chair conformation and all the styles in ChemDraw I try (e.g. ACS document 1996) produce structures with unparallel bonds. e.g. C4-OH should be parallel to C2-C3 and C5-O and C5-C6 to C3-C4. (I use the ChemDraw pyranose conformation templates). Not really an expert using ChemDraw but wondering if there is any easy way to fix this...

Offline Dan

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Re: ChemDraw Carbohydrate Style help
« Reply #1 on: February 17, 2017, 08:06:14 AM »
Can you post a picture (save as .gif or similar and attach it to you post)?

It's not clear what the problem is, templates>hexoses gives you chairs will all bonds drawn in at the correct angles. When drawing bonds manually, if you left click and hold you can move the mouse to adjust the angle, then let go of the left mouse button when you're happy with it.
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Offline SkjaldbakaSykur

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Re: ChemDraw Carbohydrate Style help
« Reply #2 on: February 17, 2017, 09:58:02 AM »
When I add the hexose templates, the angles are incorrect (I think) - see attachement. I wonder why that is. I have now drawn them manually


Offline Dan

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Re: ChemDraw Carbohydrate Style help
« Reply #3 on: February 17, 2017, 10:40:39 AM »
Ah ok, yes I see they are a little off parallel. Looks like they were trying to get a bit more of a perspective effect.

Templates>Conformers has chairs with parallel substituents.

I usually just draw them by hand.
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Offline hypervalent_iodine

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Re: ChemDraw Carbohydrate Style help
« Reply #4 on: February 17, 2017, 04:16:11 PM »
I don't really see any problem with the structures you've given. Is there any reason they need to be 100% parallel? If there is a problem with the bonds you've outlined, it's very, very minor.

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