Substituents are displayed backwards if appearing on the left of the molecule

[jblack-mestre]

Summary
If there is a sgroup that contains more than one atom or substituent, that appears on the left of a molecule, it is displayed so the last atom/substituent is connected to the molecule. This sgroup should be mirrored so that the first atom/substituent of the group is connected to the molecule

Steps to Reproduce

1. indigo-depict backwards_substituents.cml backwards_substituents.svg

Actual behavior
The substituents are displayed backwards when appearing on the left (on the right they are displayed correctly)

Expected behavior
The substituents should appear mirrored, like in chemdraw

Environment details:

• windows 11
• indigo 1110103

Attachments
backwards_substituents.cml.txt

Additional context
When rendering the molecule, the sgroup should be reversed if it appears on the left

[d-mrzv]

Reproduced in Ketcher Version 3.2.0-rc.1
Indigo Version 1.30.0-rc.1.0-g9bdedaba9-wasm32-wasm-clang-19.0.0
Browser: Google Chrome
OS: MacOS 15

[AlexeyGirin]

Verified.

• Ketcher Version 3.5.0-rc.1 Build at 2025-06-03; 14:37:03
• Indigo Version 1.33.0-rc.1.0-g1f546bed9-wasm32-wasm-clang-19.0.0
• Chrome Version 137.0.7151.69 (Official Build) (64-bit)
• Win10