3.1.1.82 C-132-carboxypyropheophorbide a = pyropheophorbide a + CO2 - - 3.1.1.82 pheophorbide a + H2O = C-132-carboxypyropheophorbide a + methanol - - 3.1.1.82 pheophorbide a + H2O = pyropheophorbide a + methanol + CO2 - -